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Spinal Anatomy > VI. Regions of the Vertebral Column > Flashcards

VI. Regions of the Vertebral Column Flashcards

1
Q

Which mammals do not have seven cervical vertebrae?

A

the two toed sloth, manatee, ant bear, and three toed sloth

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2
Q

Which mammals have more than seven cervical vertebrae?

A

ant bear, three-toed sloth

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3
Q

Which mammals have less than seven cervical vertebrae?

A

two-toed sloth, manatee

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4
Q

What is the number of vertebrae in the typical cervical spine?

A

seven segments

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5
Q

Which vertebrae are typical cervicals?

A

C3-C6

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6
Q

Which vertebrae are atypical cervicals?

A

C1, C2, C7

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7
Q

What is the shape of the typical cervical vertebral body from the cranial view?

A

rectangular

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8
Q

What is the effect of aging on the cervical vertebral body?

A

it diminishes the overall height of the vertebral body

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9
Q

What is the appearance of the typical cervical vertebral body from the lateral view?

A

posterior height is greater than anterior height by a few millimeters

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10
Q

What would be the direction of the cervical curve based on osseous features?

A

posterior or kyphotic

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11
Q

What accounts for the direction of the typical cervical curve?

A

the intervertebral disc height

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12
Q

What is the direction of the typical cervical curve?

A

anterior or lordotic

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13
Q

Which vertebral couples will demonstrate a decrease in intervertebral disc height?

A

C2/C3 down to C4/C5

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14
Q

At which vertebral couple will the cervical curve again increase intervertebral disc height?

A

C5/C6

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15
Q

What are the modifications of the superior epiphyseal rim of a typical cervical?

A

anterior groove, posterior groove, right and left uncinate processes

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16
Q

What are the names of the lateral modification of the superior epiphyseal rim?

A

unicate process, unciform process, uncovertebral process, uncus or lateral lip

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17
Q

At what developemental age will the uncinate process first be observed?

A

3rd-4th fetal month

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18
Q

What are the modifications of the inferior epiphyseal rim of a typical cervical?

A

anterior lip, posterior lip, right and left lateral grooves

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19
Q

What are the names given to the lateral modifications of the inferior epiphyseal rim?

A

lateral groove or enchancrure

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20
Q

What is the joint classification for the anterior lip - anterior longitudinal ligament - anterior groove articulation?

A

fibrous (amphiarthrosis) syndesmosis

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21
Q

What is the joint classification for the posterior lip - posterior longitudinal ligament - posterior groove articulation?

A

fibrous (amphiarthrosis) syndesomosis

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22
Q

What is the joint classification for the unicate process - lateral groove articulation?

A

modified synovial saddle (diarthrosis sellar)

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23
Q

What is the joint classification for the spongy bone - intervertebral disc articulation?

A

cartilaginous (amphiarthrosis) symphysis

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24
Q

What joint surfaces are present on the upper surface of the vertebral body of a typical cervical?

A

anterior groove, right uncinate process, left uncinate process, posterior groove and superior spongy bone surface

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25
Q

How many joints are present on the upper surface of a typical cervical vertebral body?

A

five

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26
Q

What joint surfaces are present on the lower surface of the vertebral body of a typical cervical?

A

anterior lip, right lateral groove, left lateral groove, posterior lip, and inferior spongy bone surface

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27
Q

How many joints are present on the lower surface of a typical cervical vertebral body?

A

five

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28
Q

How many total joint surfaces are present on the vertebral body of a typical cervical?

A

ten

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29
Q

What synovial joint surfaces are present on the vertebral body of a typical cervical?

A

right and left uncinate process, right and left lateral groove

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30
Q

What is the name given to the uncinate process - lateral groove articulation?

A

joint of Luschka or uncovertebral joint

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31
Q

The joint of Luschka is formed from what surfaces?

A

the uncinate process and lateral groove

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32
Q

How many total synovial joint surfaces are present on the vertebral body of a typical cervical?

A

four

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33
Q

What does the recent literature suggest as to the nature of the joint of Luschka?

A

the joint is representative of the intervertebral disc aging, which results in loss of lamellar integrity near the joint

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34
Q

What is the functional significance of the joint of Luschka?

A

it appears to stabilize the intervertebral disc while accommodating flexion - extension and requiring couple motion (axial rotation with lateral bending) in the cervical spine

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35
Q

How many spongy bone - intervertebral disc articulation - spongy bone articulations are present on the vertebral body of a typical cervical?

A

two

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36
Q

How many cartilaginous (amphiarthrosis) symphysis joints are present on the vertebral body of a typical cervical?

A

two

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37
Q

What muscle attaches to the typical cervical vertebral body?

A

the longus colli muscle

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38
Q

What is the orientation and angulation of the pedicle of a typical cervical?

A

posterolateral, 45 degrees

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39
Q

At what location on the vertebral body of a typical cervical will the pedicle attach?

A

to the side and in the center of the vertebral body

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40
Q

In the vertebral couple, which cervical vertebral body will contribute more toward the height of the intervertebral foramen?

A

neither, both contribute equally to the intervertebral foramen height

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41
Q

What surface feature is located at the lower margin of the pedicle?

A

inferior vertebral notch

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42
Q

Which spinal nerve will be accommodated on the superior vertebral notch of C5?

A

C5 spinal nerve

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43
Q

Which spinal nerve will be accommodated on the inferior vertebral notch of C5?

A

C6 spinal nerve

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44
Q

What is the direction of projection of the cervical lamina?

A

posteromedially

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45
Q

What ligament attaches to the lamina of a typical cervical?

A

ligamentum flavum

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46
Q

What joint classification will be associated with the ligamentum flavum and its attachment?

A

fibrous (amphiarthrosis) syndesmosis

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47
Q

Ossification of the ligamentum flavum at the attachment site on the lamina will result in what feature?

A

para-articular processes

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48
Q

Ossification of the ligamentum flavum at the attachment site on the lamina will be associated with which classification of bone?

A

accessory bone

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49
Q

Ossificaiton within the length of the ligament flavum will be associated with which classification of bone?

A

heterotopic bone

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50
Q

What is the outline of the vertebral foramen of a typical cervical vertebra?

A

heart-shaped or triangular

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51
Q

Which is the greatest diameter of the vertebral foramen of typical cervicals?

A

transverse

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52
Q

What soft tissue diameter mimics the outline of the typical cervical vertebral foramen?

A

the transverse diameter of the cervical enlargement of the spinal cord

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53
Q

The greatest transverse diameter of the typical cervical vertebra occurs at …

A

C6

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54
Q

The greatest frequency of osteophytes associated with the vertebral body occurs at which typical cervical vertebral couple?

A

C5/C6

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55
Q

What osseous parts form the typical cervical vertebrae transverse process?

A

costal element, anterior tubercle, costotransverse bar, posterior tubercle, true transverse process

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56
Q

List, in order, the osseous parts of the typical cervical vertebra transverse process beginning at the lamina pedicle junction.

A

true transverse process, posterior tubercle, costotransverse bar, anterior tubercle, costal element

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57
Q

What is the distal modification of the costal element of a typical cervical vertebra?

A

the anterior tubercle

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58
Q

What muscles will attach to the anterior tubercle of a typical cervical vertebra?

A

anterior scalene, longus capitis, longus colli, anterior intertransversarii

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59
Q

What is the distal modification of the true transverse process of typical cervicals?

A

the posterior tubercle

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60
Q

What muscles may attach to the posterior tubercle of a typical cervical vertebra?

A

splenius cervicis, iliocostalis cervicis, longissimus cervicis, levator scapula, middle scalene, posterior scalene, rotators, and posterior intertransversarii

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61
Q

What bony feature connects the anterior and posterior tubercles of a typical cervical transverse process?

A

costotransverse bar or intertubercular lamella

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62
Q

What muscles will attach to the costotransverse bar?

A

middle scalene and posterior intertransversarii

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63
Q

What is the name given to the collective rib-forming region?

A

the pleurapophysis

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64
Q

What produces the primary tension on the transverse process that will cause remodeling in the anterolateral and inferior directions?

A

cervical spinal nerves as they are directed anterolaterally and inferiorly to form the cervical and brachial plexuses

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65
Q

What is the name given to the superior margin of the costotransverse bar?

A

sulcus for the ventral primary ramus of a cervical spinal nerve

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66
Q

What is the orientation and angulation of a typical cervical transverse process?

A

60 degrees anterolaterally (from midsagittal plane), 15 degrees inferiorly (from the horizontal plane)

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67
Q

What is the name given to the modification of the anterior tubercle of the C6 transverse process?

A

the carotid tubercle

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68
Q

What will cause remodeling of the anterior tubercle at C6?

A

the common carotid artery

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69
Q

What will occupy the typical cervical vertebra transverse foramen?

A

the vertebral artery, vertebral venous plexus and postganglionic sympathetic motor nerve fibers

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70
Q

What part of the peripheral nerve system is observed in the transverse foramen of typical cervical vertebra?

A

postganglionic sympathetic motor nerve fibers of the autonomic (involuntary or visceral) nerve system

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71
Q

What is the name of the lamina-pedicle junction of typical cervical vertebrae?

A

the articular pillar

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72
Q

What is the name of the surface feature observed between the ends of the articular pillar?

A

the groove/sulcus for the dorsal ramus of a cervical spinal nerve

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73
Q

What nerve indents the articular pillar of typical cervical vertebrae?

A

the medial branch of the dorsal ramus of a cervical spinal nerve

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74
Q

What is the classic angulation of typical cervical articular facets?

A

40 to 45 degrees from the coronal plane

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75
Q

Recent work suggests what angulation for typical cervical articular facets?

A

55 to 60 degrees

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76
Q

What is the orientation of the typical cervical superior articular facet?

A

backward, upward, medial (BUM)

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77
Q

What is the orientation of the typical cervical inferior articular facet?

A

forward, lateral, downward (FoLD)

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78
Q

What muscles will attach to typical cervical articular processes?

A

the longissimus capitis, longissimus cervicis, semispinalis capitis, semispinalis cervicis, multifidus, and rotators

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79
Q

What muscles blend with the capsular ligament of cervical zygapophyses?

A

the semispinalis capitis, multifidus, and rotator longus joint

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80
Q

What is the joint classification for the typical cervical zygapophysis?

A

synovial plane (diarthrosis arthrodia) joint

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81
Q

What modifications of the synovial joint are observed in the cervical spine?

A

meniscoidal folds

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82
Q

What function will meniscoidal folds provide in cervical zygapophyses?

A

they are assumed to distribute pressure across the joint surface

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83
Q

The greatest range of flexion - extension among the typical cervical vertebrae occurs at which vertebral couple?

A

typically C5/C6

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84
Q

What motions are coupled in the cervical spine?

A

lateral bending and axial rotation

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85
Q

Ranges of coupled motion among the typical cervical vertebrae will be similar for what cervical vertebral couples?

A

the C2/C3, C3/C4, C4/C5 vertebral couples

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86
Q

Ranges of coupled motion among the typical cervical vertebrae will being to decrease at what cervical vertebral couple?

A

the C5/C6 vertebral couple

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87
Q

What is the usual condition for the Caucasian typical cervical spinous process?

A

they are bifid

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88
Q

What is the usual condition for the African-American typical cervical spinous process?

A

they are non-bifid

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89
Q

What is the osseous modification at the distal end of the spinous process?

A

the spinous tubercle

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90
Q

What muscles may attach to the typical cervical spinous process?

A

the spinalis cervicis, semispinalis cervicis, semispinalis thoracis, multifidus, rotators, and interspinalis

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91
Q

What ligaments will attach to the typical cervical spinous process?

A

the interspinous ligament and ligamentum nuchae

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92
Q

What will form the anterior boundary of a typical cervical intervertebral foramen?

A

the lateral groove and vertebral body of the segment above, the uncinate process and vertebral body of the segment below, the intervertebral disc, and the posterior longitudinal ligament

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93
Q

What will form the posterior boundary of a typical cervical intervertebral foramen?

A

the inferior articular process (post-zygapophysis), the superior articular process (pre-zygapophysis), the capsular ligament, and the ligamentum flavum

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94
Q

What will form the superior boundary of a typical cervical intervertebral foramen?

A

the inferior vertebral notch or inferior vertebral incisure

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95
Q

What will form the inferior boundary of a typical cervical intervertebral foramen?

A

the superior vertebral notch or superior vertebral incisure

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96
Q

What is the unique anterior boundary of the intervertebral foramen for the C4 spinal nerve?

A

the lateral groove of C3 and uncinate process of C4 forming the joint of Luschka

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97
Q

What is the name of the first cervical vertebra?

A

atlas

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98
Q

What features are lacking at C1?

A

vertebral body, pedicles, a spinous process, and the intervertebral disc

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99
Q

What is though to represent the pedicle at C1?

A

the anterior arch

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100
Q

What osseous modification is observed to the front of the anterior arch of C1?

A

the anterior tubercle

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101
Q

What muscle attaches to the anterior arch of C1?

A

longus colli

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102
Q

What ligaments will attach to the anterior arch of C1?

A

the anterior longitudinal, anterior atlanto-occipital, and anterior atlanto-axial ligaments

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103
Q

What is observed on the back of the anterior arch of C1?

A

the fovea dentis

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104
Q

What joint classifications are observed on the anterior arch of C1?

A

fibrous (amphiarthrosis) syndesmosis joint and synovial pivot (diarthrosis trochoid) joint

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105
Q

What is the contribution of the lateral mass to the circumference of C1?

A

forty percent; twenty percent for each lateral mass

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106
Q

What is the morphology of the superior articular facet of C1?

A

they are elliptical, closer together in front and often demonstrate an elevation subdividing the facet surface into two separate surfaces

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107
Q

What is the orientation of the superior articular facet of C1?

A

backward, upward, medial (BUM)

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108
Q

What is the joint classification of the atlanto-occipital zygapophysis?

A

synovial (diarthrosis) ellipsoidal joint

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109
Q

What are the morphological characteristics of the inferior articular facet of C1?

A

asymmetrical, slightly concave or flattened

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110
Q

What is the orientation of the inferior articular facet of C1?

A

backward, medial, and downward (BMD)

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111
Q

What is the joint classification of the atlanto-axial zygapophysis?

A

synovial plane (diarthrosis arthrodia) joint

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112
Q

What is the name of the rounded elevation on the medial aspect of the lateral mass of C1?

A

tubercle for the transverse atlantal ligament

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113
Q

What muscles attach to the lateral mass of C1?

A

levator scapula, splenius cervicis, and rectus capitis anterior

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114
Q

What is the contribution of the posterior arch to the circumference of C1?

A

about forty percent

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115
Q

What part of C1 represents the spinous process?

A

posterior tubercle of the posterior arch

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116
Q

What is the distance from the posterior tubercle of the posterior arch to the skin in each gender?

A

males: about fifty millimeters
females: about thirty-seven millimeters

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117
Q

What attaches tot he posterior tubercle of the posterior arch of C1?

A

rectus capitis posterior minor muscle and ligamentum nuchae

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118
Q

What superior surface modifications of the posterior arch of C1 are present?

A

groove/sulcus for the vertebral artery and arcuate rim

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119
Q

What attaches to the arcuate rim of C1?

A

the posterior atlanto-occipital ligament

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120
Q

What are the attachment sites of the posterior atlanto-occipital ligament?

A

it is attached to the arcuate rim of the posterior arch of atlas, to the superior articular process of the lateral mass of atlas, and to the posterior margin of the foramen magnum of the occipital bone

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121
Q

Ossification of the free margin of the posterior atlanto-occipital ligament results in which atypical bone classification?

A

accessory bone

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122
Q

What is the earliest age of development where ossification of the anterior free margin of the posterior atlanto-occipital ligament what structures will form?

A

about age 7 years old

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123
Q

Based on the amount of ossification of the anterior free margin of the posterior atlanto-occipital ligament what structures will form?

A

an incomplete ponticulus posticus or a complete ponticulus posticus

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124
Q

What may be formed by ossification of the anterior free margin of the posterior atlanto-occipital ligament?

A

a partial ponticulus posticus or incomplete ponticulus posticus

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125
Q

What forms the types of ponticulus posticus?

A

ossification of the anterior free margin of the posterior atlanto-occipital ligament

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126
Q

What are the attachment sites of the ponticulus posticus?

A

it is attached to the arcuate rim of the posterior arch of atlas and to the superior articular process of the lateral mass of atlas

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127
Q

What other name may be used to identify a ponticulus posticus?

A

Kimmerle’s anomaly

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128
Q

What names are given to the opening formed by the ponticulus posticus?

A

arcuate foramen or retroarticular canal

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129
Q

Ponticulus posticushas observed in what ethnic populations?

A

all ethnic populations studied thus far

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130
Q

What is the general range of incidence of ponticulus posticus in the populations studied?

A

1% - 41%

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131
Q

What is the gender bias now associated with ponticulus posticus?

A

female

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132
Q

What is the incidence of a complete ponticulus posticus versus an incomplete ponticulus posticus?

A

the incidence of a complete ponticulus posticus is about fifteen percent; the incidence of an incomplete ponticulus posticus may be as high as forty-one percent

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133
Q

What is observed on the undersurface of the posterior arch of C1?

A

“inferior vertebral notch” and an attachment site for the posterior atlanto-axial ligament

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134
Q

What joint classification(s) may be observed on the posterior arch of C1?

A

fibrous (amphiarthrosis) syndesmosis joint

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135
Q

What is the location of the “zygapophysis” relative to the atlanto-occipital and atlanto-axial intervertebral foramina?

A

it forms part of the anterior boundary of the intervertebral foramen in both cases

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136
Q

What is the general appearance of the transverse process of C1?

A

triangular

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137
Q

What are the osseous parts of the transverse process of C1?

A

costal element, posterior tubercle, true transverse process

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138
Q

What osseous parts of the transverse process are absent at C1?

A

anterior tubercle and costotransverse bar

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139
Q

What muscles attach to the transverse process of C1?

A

rectus capitis anterior, rectus capitis lateralis, middle scalene, levator scapula, splenius cervicis, obliquus capitis superior, obliquus capitis inferior, and intertransversarii muscles

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140
Q

What suboccipital muscles are known to have fascial projections attaching to the spinal dura?

A

rectus capitis posterior minor, rectus capitis posterior major, obliquus capitis inferior

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141
Q

What are the connections between suboccipital muscles and the spinal dura called?

A

myodural bridges

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142
Q

What are the lateral bridges of atlas connected to?

A

the lateral mass and the transverse process of atlas

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143
Q

What forms of the lateral bridges are observed in the population?

A

incomplete lateral bridges and complete lateral bridges

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144
Q

What opening is identified when a complete lateral bridge is formed?

A

the retrotransverse foramen

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145
Q

What are the possible contents of the retrotransverse foramen?

A

the vertebral artery, a branch from the suboccipital nerve and veins communicating with the venous sinuses of the neck

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146
Q

Which of the ponticles (bridges) of atlas is most numerous?

A

ponticulus posticus

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147
Q

Which of the ponticles (bridges) of atlas is only observed in humans?

A

lateral bridges

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148
Q

What is observed in the transverse foramen C1?

A

vertebral artery, vertebral venous plexus, postganglionic sympathetic motor nerve fibers

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149
Q

What is the gender variation for measurements of the transverse diameter of C1?

A

males: 78 millimeters
females: 72 millimeters

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150
Q

Is there a gender variation for the distance from the posterior tubercle of the transverse process of C1 to the skin?

A

not a significant difference

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151
Q

What is the distance from the posterior tubercle of the transverse process of C1 to the skin for each gender?

A

a little over 30 millimeters for both males and females

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152
Q

What joint classifications are observed at C1?

A

fibrous (amphiarthrosis) syndesmosis joint, synovial (diarthrosis) ellipsoidal joint, synovial pivot (diarthrosis trochoid) joint, and synovial plane (diarthrosis arthrodia) joint

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153
Q

How many synovial joint surfaces are observed at C1?

A

five

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154
Q

What synovial joint surfaces are observed at C1?

A

two superior articular facets, two inferior articular facets, and the fovea dentis

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155
Q

What names are given to C2?

A

axis or epistropheus

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156
Q

What unique vertebral body modification is characteristic of C2?

A

the dens or odontoid process

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157
Q

How many joint surfaces are present on the odontoid process of C2?

A

five

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158
Q

What joint surfaces are present on the odontoid process of C2?

A

facet for fovea dentis, groove for transverse atlantal ligament, attachment sites for the alar ligaments, attachment site for the apical-dental ligament

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159
Q

Which joint classifications are represented at the odontoid process of C2?

A

fibrous (amphiarthrosis) syndesmosis and synovial pivot (diarthrosis trochoid) joints

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160
Q

What is the name given to the odontoid process when the facet for the fovea dentis lies above the groove for the transverse atlantal ligament and the attachment sites for the apical-dental and alar ligaments appear to be directed posterior?

A

lordotic dens

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161
Q

What is the name/classification given to the odontoid process when the tip of the dens is directed posterior?

A

lordotic dens

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162
Q

What is the name given to the odontoid process when the facet for the fovea dentis lies below the groove for the transverse atlantal ligament and attachment sites for the apical-dental and alar ligaments appear to be directed anterior?

A

kyphotic dens

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163
Q

What is the name/classification given to the odontoid process when the tip of the dens is directed anterior?

A

kyphotic dens

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164
Q

What joint surfaces are present at the inferior part of the vertebral body of C2?

A

anterior lip, posterior lip, right and left lateral grooves, and cancellous bone

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165
Q

How many joints are formed by the inferior part of the vertebral body of C2?

A

five

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166
Q

What joint classifications are present at the inferior part of the vertebral body of C2?

A

fibrous (amphiarthrosis) syndesmosis, modified synovial saddle (diarthrosis sellar), and cartilaginous (amphiarthrosis) symphysis

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167
Q

How many joint surfaces are present at the vertebral body of C2?

A

ten

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168
Q

What joint classifications are present at the vertebral body of C2?

A

fibrous (amphiarthrosis) syndesmosis, synovial pivot (diarthrosis trochoid), modified synovial saddle (diarthrosis sellar), and cartilaginous (amphiarthrosis) symphysis

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169
Q

What ligaments will attach posteriorly to the inferior epiphyseal rim of C2?

A

membrana tectoria and posterior longitudinal ligament

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170
Q

What ligament will represent the cranial continuation of the posterior longitudinal ligament?

A

membrana tectoria

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171
Q

What ligament forms the anterior boundary for the spinal canal above C2?

A

membrana tectoria

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172
Q

What ligament forms the anterior boundary for the spinal canal below C2?

A

posterior longitudinal ligament

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173
Q

What lies on the upper surface of the pedicle of C2?

A

the superior articular process

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174
Q

What is the location of the superior vertebral notch of C2?

A

on the lamina-pedicle junction

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175
Q

What attaches to the lamina of C2?

A

obliquus capitis inferior muscle, posterior atlanto-axial ligament, and ligamentum flavum

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176
Q

What muscle attaches to the lamina of C2?

A

obliquus capitis inferior

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177
Q

What is the outline of the vertebral foramen of C2?

A

oval to triangular

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178
Q

What is the appearance of the superior articular facets of C2?

A

they are asymmetrical and slightly convex

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179
Q

What is the facet orientation of the superior articular facet of C2?

A

backward, upward, and lateral (BUL)

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180
Q

What is the orientation of the inferior articular facets of C2?

A

forward, lateral, and down (FoLD)

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181
Q

What is the classification of the zygapophyseal joints of C2?

A

synovial plane (diarthrosis arthrodia) joint

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182
Q

What muscle attaches to the articular processes of C3?

A

longissimus cervicis

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183
Q

What osseous parts of the typical cervical transverse process are present at C2?

A

anterior tubercle and costotransverse bar

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184
Q

What will be observed in the transverse foramen at C2?

A

vertebral artery, vertebral venous plexus, postganglionic sympathetic motor nerve fibers

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185
Q

What is the gender variation for the transverse diameter of C2?

A

males: fifty-seven millimeters
females: fifty millimeters

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186
Q

What muscles attach to the transverse process at C2?

A

levator scapulae, middle scalene, splenius cervicis, longissimus cervicis, and intertransversarii

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187
Q

Anterior and posterior intertransversarii are first observed at what vertebral couple?

A

C2 and C3

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188
Q

What is the characteristic appearance of the C2 spinous process in humans?

A

bifid

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189
Q

What is the location for palpation of the spinous process of C2?

A

in the midline, about two inches below the external occipital protuberance

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190
Q

What muscles attach to the spinous process of C2?

A

rectus capitis posterior major, obliquus capitis inferior, spinalis cervicis, semispinalis cervicis, multifidus, rotators, and interspinalis muscles

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191
Q

What ligaments attach to the spinous process of C2?

A

ligamentum nuchae, interspinous ligaments

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192
Q

What names may be given to C7?

A

vertebra prominens and vertebral prominence

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193
Q

What is the name given to the topographical elevation observed at the base of the neck?

A

vertebral prominence

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194
Q

What name is given only to C7?

A

vertebra prominens

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195
Q

In what percent of men and of women does C7 become the vertebral prominence?

A

men: eighty-six percent
women: seventy-nine percent

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196
Q

What is the segment and gender bias for vertebrae other than C7 becoming the vertebral prominence?

A

C6 is more common in females and T1 is more common in males

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197
Q

What joint surfaces are present at the superior margin of the vertebral body of C7?

A

anterior groove, posterior groove, right and left uncinate processes, cancellous bone

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198
Q

What joint surfaces are present at the inferior margin of the vertebral body of C7?

A

the anterior and posterior margins of the inferior epiphyseal rim, cancellous bone

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199
Q

How many joint surfaces are present at the vertebral body of C7?

A

eight

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200
Q

What joint classifications are observed at the vertebral body of C7?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis, and modified synovial saddle (diarthrosis sellar) joint

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201
Q

How many synovial joint surfaces are observed at the vertebral body of C7?

A

two

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202
Q

What synvoial joint surfaces are observed at the vertebral body of C7?

A

the right and left uncinate processes

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203
Q

What muscle(s) attaches to the vertebral body of C7?

A

longus colli muscle

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204
Q

What are the osseous parts of the transverse process of C7?

A

costal element, anterior tuberlce, costotransverse bar, posterior tuberlce, true transverse process

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205
Q

What features are typically present in the transverse foramen of C7?

A

vertebral venous plexus, postganglionic sympathetic motor fibers

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206
Q

What muscles attach to the transverse process of C7?

A

middle scalene, iliocostalis thoracis, longissimus cervicis, semispinalis capitis, rotators, intertransversarii, and levator costarum brevis

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207
Q

What is the angulation of the articular facet at C7?

A

more vertical at about 63 degrees

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208
Q

What is the orientation of the superior articular facet of C7?

A

backward, upward, medial (BUM)

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209
Q

What is the orientation of the inferior articular facet of C7?

A

forward, medial, and downward (ForMeD)

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210
Q

What muscles will attach to the articular process of C7?

A

longissimus cervicis, longissimus capitis, semispinalis cervicis, and multifidus

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211
Q

What are the features of the spinous process of C7?

A

long, horizontal, nonbifid

212
Q

What muscles attach to the spinous process of C7?

A

trapezius, rhomboid minor, serratus posterior superior, splenius capitis, spinalis capitis, spinalis cervicis, semispinalis thoracis, multifidus, rotators, and interspinalis

213
Q

What ligaments attach to the spinous process of C7?

A

ligamentum nuchae and interspinous ligaments

214
Q

The vertebral artery on which side is typically larger?

A

left vertebral artery

215
Q

What is the gender bias regarding size of the vertebral artery?

A

men have larger vertebral arteries than women

216
Q

What was the name of the physical exam used to determine vertebral artery patency?

A

the vertebrobasilar artery insufficiency test

217
Q

Which side artery was tested during the course of the vertebrobasilar artery insufficiency exam?

A

the ipsilateral artery on the side of rotation

218
Q

What are the symptoms of failure of the vertebral artery to compensate during the vertebrobasilar artery insufficiency exam?

A

dizziness, vertigo, nausea are common complaints

219
Q

The vertebral artery is typically a branch of which artery?

A

subclavian artery

220
Q

Typically, at what level will the vertebral artery first become located in the transverse foramen?

221
Q

At what location will the vertebral artery form its first compensatory loop?

A

the atlanto-axial interspace

222
Q

At what location will the vertebral artery form its second compensatory loop?

A

the atlanto-occipital interspace

223
Q

At what segments will the vertebral artery be firmly attached to the transverse foramen?

A

both C1 and C2

224
Q

What is the purpose of the vertebral artery loops between C2, C1, and occiput?

A

the increased length will accommodate the greater rotation at these locations

225
Q

What happens to the vertebral artery as it enters the vertebral foramen of C1?

A

the adventitia of the artery blends with the dura mater and arachnoid mater; as a result the artery lies in the subarachnoid space

226
Q

What happens to the vertebral artery after it enters the subarachnoid space at C1?

A

the vertebral artery ascends along the medulla oblongata to the pontine-medullary junction where the right and left arteries unite to form the basilar artery

227
Q

What artery is formed by the union of the right and left vertebral arteries?

A

the basilar artery

228
Q

Which suboccipital muscles attach to C1?

A

rectus capitis posterior minor, obliquus capitis superior, obliquus capitis inferior

229
Q

Which suboccipital muscles attach to C2?

A

rectus capitis posterior major, obliquus capitis inferior

230
Q

Which erector spinae muscles attach to the cervical spine?

A

iliocostalis thoracis, iliocostalis cervicis, longissimus cervicis, longissimus capitis, spinalis cervicis, spinalis capitis

231
Q

Which transversospinalis muscles attach to the cervical spine?

A

semispinalis cervicis, semispinalis capitis, multifidus, and rotators

232
Q

What joint classifications are present at C1?

A

synovial (diarthrosis) ellipsoidal, synovial pivot (diarthrosis trochoid), synovial plane (diarthrosis arthrodia), and fibrous (amphiarthrosis) syndesmosis

233
Q

What joint classifications are present at C2?

A

synovial pivot (diarthrosis trochoid), synovial plane (diarthrosis arthrodia), modified synovial saddle (diarthrosis sellar), fibrous (amphiarthrosis) syndesmosis, and cartilaginous (amphiarthrosis) symphysis joint

234
Q

What joint classifications are present at each typical cervical?

A

synovial plane (diarthrosis arthrodia), modified synovial saddle (diarthrosis sellar), fibrous (amphiarthrosis) syndesmosis and cartilaginous (amphiarthrosis) symphysis

235
Q

What joint classifications are present at C7?

A

synovial plane (diarthrosis arthrodia), modified synovial saddle (diarthrosis sellar), fibrous (amphiarthrosis) syndesmosis and cartilaginous (amphiarthrosis) symphysis

236
Q

What forms the boundaries for the exit of the C1 nerve from the spinal canal?

A

occipital condyle, superior articular process of C1, capsular ligament, arcuate rim, groove for the vertebral artery, posterior atlanto-occipital ligament

237
Q

What forms the boundaries for the ext of the C2 nerve from the spinal canal?

A

inferior articular process of C1, superior articular process of C2, capsular ligament, inferior vertebral notch of C1, superior vertebral notch of C2, posterior arch of C1, lamina of C2, and posterior atlanto-axial ligament

238
Q

What forms the anterior boundary for the C2 nerve exit from the spinal canal?

A

inferior articular process of C1, superior articular process of C2, capsular ligament

239
Q

What forms the posterior boundary of the C2 nerve exit from the spinal canal?

A

the posterior arch of C1, lamina of C2 and posterior atlanto-axial ligament

240
Q

What forms the anterior boundary for the C3-C7 nerve exit from the spinal canal?

A

the vertebral bodies, intervertebral disc, posterior longitudinal ligament, uncinate process, lateral groove

241
Q

What forms the anterior boundary for the C8 nerve exit from the spinal canal?

A

the vertebral bodies of C7 and T1, intervertebral disc, posterior longitudinal ligament, capsular ligament of the costocentral joint, superior costal facet of T1 and articular surface of the first rib

242
Q

What are the superior articular facet orientations for the cervical vertebrae?

A

C1 is backward, upward, medial (BUM)
C2 is backward, upward, lateral (BUL)
C3-C7 is backward, upward, medial (BUM)

243
Q

What are the inferior articular facet orientations for the cervical vertebrae?

A

C1 is backward, downward, medial (BMD)

C2-C6 is forward, downward, lateral (FoLD), C7 is forward, downward, medial (ForMeD)

244
Q

How many synovial joints are identified for each cervical vertebra?

A 
C1 = five 
C2 = eight 
C3-6 = eight 
C7 = six
245
Q

How many joint are identified at the vertebral body of each cervical vertebra?

A 
C1 = none 
C2 = ten 
C3-6 = ten 
C7 = eight
246
Q

Which thoracic segments are considered the typical thoracics?

A

T2-T8 segments

247
Q

Which thoracic segments are considered the atypical thoracics?

A

T1, T9-T12

248
Q

What features will allow discrimination between T2-T4 and T5-T8 segmental gropus?

A

the vertebral body, transverse process, articular process, and spinous process

249
Q

What is the outline of the vertebral body of a typical thoracic from superior view?

A

triangular

250
Q

On cranial view, what is the outline of the vertebral body for the T2-T4 group?

A

the vertebral body will have bilaterally convex sides

251
Q

On cranial view, what is the outline of the vertebral body for the T5-T8 group?

A

the left side of the vertebral body will be flatened, the right side convex

252
Q

What is the appearance of the vertebral body from the anterior view for T2-T4?

A

both sides will appear to be scalloped (indented) between the epiphyseal rims

253
Q

What is the appearance of the vertebral body from the anterior view for T5-T8?

A

the left side will appear to be less scalloped (indented) between the epiphyseal rims compared to the right side

254
Q

What is the cause for the flattening of the left side of the vertebral body on T5-T8?

A

The descending thoracic aorta will come to lie on the left side of the vertebral body in this region and prevent the epiphyseal plate cartilage from deforming as much as on the right side. When the epiphyseal plates ossify, the epiphyseal rim will not be pushed out as far on the left so that side of the vertebral body appears to be less scalloped.

255
Q

What is the name given to the left side appearance of the vertebral body of T5-T8?

A

the aortic impression

256
Q

What is the aortic impression?

A

the flattening of the superior and inferior epiphyseal rims on the left side of the vertebral body of T5-T8 which gives the vertebral body a less scalloped or less indented appearance on that side

257
Q

What part of the vertebral body is most influenced by the aorta at T5-T8?

A

the left side superior and inferior epiphyseal rims

258
Q

What is the height pattern of the typical thoracic vertebral body?

A

the posterior height is greater than the anterior height by one to two millimeters

259
Q

What is the height pattern of intervertebral discs in the typical thoracic region?

A

the intervertebral discs are rather planar or flat with no apparent height difference between anterior and posterior heights

260
Q

What is the principal cause of the posterior curve of the thoracic spine?

A

the vertebral body height differences

261
Q

In terms of the anterior-posterior curves of the vertebral column, what direction will the thoracic spine face?

262
Q

What is another way of naming a posterior curve pattern?

A

a kyphotic curve

263
Q

What joints are identified at the vertebral body of a typical thoracic?

A

vertebral body to anterior longitudinal ligament at the epiphyseal rims; vertebral body to posterior longitudinal ligametn at the epiphyseal rims; vertebral body to vertebral body via the intervertebral discs; vertebral body to capitulum of a rib (costocentral joint)

264
Q

What joint classifications are identified at the vertebral body of a typical thoracic?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis, and synovial plane (diarthrosis arthrodia)

265
Q

What are the examples of fibrous (amphiarthrosis) syndesmosis joints at the vertebral body of a typical thoracic?

A

superior and inferior epiphyseal rim to anterior longitudinal ligament
superior and inferior epiphyseal rim to posterior longitudinal ligament

266
Q

What are the examples of cartilaginous (amphiarthrosis) symphysis joints at the vertebral body of a typical thoracic?

A

superior epiphyseal rim to intervertebral disc

inferior epiphyseal rim to intervertebral disc

267
Q

What are the examples of synovial plane (diarthrosis arthrodia) joints at the vertebral body of a typical thoracic?

A

right and left superior costal demi-facet to inferior articular surface of the rib head
right and left inferior costal demi-facet to superior articular surface of the rib head

268
Q

How many synovial joints are formed at the vertebral body of a typical thoracic?

269
Q

How many symphysis joints are formed at the vertebral body of a typical thoracic?

270
Q

How many syndesmosis joints are formed at the vertebral body of a typical thoracic?

A

typically four are identified (as many as eight if the costocentral stellate/radiate ligaments are included)

271
Q

How many joints are formed at the vertebral body of a typical thoracic?

A

typically ten (fourteen if the costocentral stellate/radiate ligaments are included)

272
Q

What is the name given to the joint formed between the vertebral body and rib?

A

costocentral joint

273
Q

How many costocentral joints are formed at the vertebral body of a typical thoracic?

274
Q

What synovial joint surfaces are present on the vertebral body of a typical thoracic?

A

the right and left superior and the right and left inferior costal demi-facets

275
Q

What is the relationship between the vertebral body surface and the rib head surface in the costocentral joint of a typical thoracic?

A

the superior costal demi-facet of the vertebral body will joint with the inferior articular surface of the head of the rib
the inferior costal demi-facet of the vertebral body will joint with the superior articular surface of the head of the rib

276
Q

Which of the demi-facets on the vertebral body of a typical thoracic is larger?

A

the superior costal demi-facet

277
Q

What feature will provide assistance in maintaining the stability of the intervertebral foramen in the typical thoracics?

A

the costocentral joint or ribs

278
Q

What is the rib - vertebral body combination at the intervertebral foramen for the … nerve? (Let’s use the T6 nerve)

A

the inferior costal demi-facet of T6 will joint with the superior articular surface of the head of the seventh rib
the superior costal demi-facet of T7 will joint with the inferior articular surface of the head of the seventh rib

279
Q

What ligaments support the costocentral joint?

A

the costocentral stellate/radiate ligament and the costocentral interarticular or intra-articular ligament

280
Q

To what structures will the costocentral stellate/radiate ligament attach?

A

the hed of the rib, both vertebral bodies in the vertebral couple and the intervertebral disc

281
Q

The costocentral stellate/radiate ligametn will attach to which segment(s) at the T3 spinal nerve intervertebral foramen?

A

the vertebral body of T3 and the vertebral body of T4

282
Q

What does the costocentral intra-articular or interarticular ligament connect to?

A

the interarticular or intra-articular crest of the head of the rib and the intervertebral disc

283
Q

What is the size relationship between the articulating surface of the head of the rib and the costal demi-facet surface?

A

the surface is greater than the costal demi-facet surface

284
Q

Which muscle(s) is attached to the vertebral body of T2 or T3?

A

the longus colli

285
Q

What is the position and direction of the pedicle from the typical thoracic vertebral body?

A

the pedicle arises from the upper third of the vertebral body and projects posterior and slightly laterally

286
Q

What is the angulation of the pedicle in the typical thoracic region?

A

ten to fifteen degrees posterolateral from the sagittal plane

287
Q

Which x-ray view is used to see into the intervertebral foramen of atypical thoracic?

A

the lateral view

288
Q

Which vertebral notch or incisure is said to prominent?

A

the inferior vertebral notch or inferior vertebral incisure

289
Q

What is the nerve - vertebral body relationship at the typical thoracic intervertebral foramen?

A

in the intervertebral foramen, the number of the nerve is the same as the number of the upper thoracic in the vertebral couple

290
Q

What is the rib - vertebral body relationship at the typical thoracic intervertebral foramen?

A

in the intervertebral foramen, the number of the rib is the same as the number of the lower thoracic in the vertebral couple

291
Q

What is the appearance and position of the lamina in a typical thoracic?

A

the lamina is short, broad, and thick and lies next to the spinous process

292
Q

What is the overlap of the lamina called in the typical thoracic region?

293
Q

What is the outline of the vertebral foramen in the typical thoracic region?

A

oval to circular

294
Q

In which plane will the size of the vertebral foramen of a typical thoracic be greatest?

A

the transverse plane, the vertebral transverse diameter

295
Q

What is the direction of the transverse process in the typical thoracics?

A

the transverse process projects more posterior with each inferior vertebra

296
Q

What is present at the tip of the transverse process of a typical thoracic?

A

the transverse tubercle

297
Q

What is the distance between the transverse tubercles in the typical thoracic region?

A

from T2 each transverse diameter becomes shorter as the transverse processes angle more posterior

298
Q

What is present on the transverse tubercle of a typical thoracic?

A

the transverse costal facet

299
Q

What is the rib - transverse process relationship for the typical thoracics?

A

the number of the rib is the same as the number of the vertebra whose transverse process is being stuied; fifth rib with T5 transverse process

300
Q

What is the orientation of the transverse costal facets fro T2-T6?

A

they face forward and outward

301
Q

What is the orientation of the transverse costal facets from T7-T9?

A

they face forward, outward, and upward

302
Q

What is the classification of the costatransverse joint?

A

synovial plane (diarthrosis arthrodia) joint

303
Q

What are the osseous parts of the costotransverse joint?

A

the transverse costal facet and the articular surface of the tubercle of a rib

304
Q

What ligaments support the costotransverse joint of a typical thoracic?

A

the superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments

305
Q

The superior costotransverse ligament of rib five will attach to which vertebral feature?

A

the transverse process of T4

306
Q

The superior costotransverse ligament of the transverse process of T4 will attach to rib …

307
Q

The inferior costotransverse ligament of rib five will attach to which vertebral feature?

A

the transverse process of T5

308
Q

The inferior costotransverse ligament of the transverse process of T5 will attach to rib …

309
Q

The lateral costotransverse ligament of rib five will attach to which segmental bony feature?

A

the transverse process of T5

310
Q

The lateral costotransverse ligament of the transverse process of T5 will attach to rib …

311
Q

What ligaments attach to the transverse process of a typical thoracic?

A

intertransverse , capsular costotransverse, superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments

312
Q

Which joint classification is associated with the intertransverse, superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments?

A

fibrous (amphiarthrosis) syndesmosis joint

313
Q

Which muscles may attach to the transverse process of a typical thoracic?

A

longissimus thoracis, longissimus cervicis, longissimus capitis, semispinalis thoracis, semispinalis cervicis, semispinalis capitis, multifidus, rotator longus, rotator brevis, intertransversarii, levator costarum longus, and levator costarum brevis

314
Q

Of the muscles attaching to the transverse process of typical thoracics, which ones will attach to the T5-T8 vertebral segments?

A

semispinalis thoracis and levator costarum longus

315
Q

Which of the muscles attaching to the transverse process of typical thoracics are examples of the erector spinae group?

A

the longissimus muscles

316
Q

Which erector spinae muscles will not attach to the transverse process of typical thoracics?

A

spinalis and iliocostalis muscles

317
Q

Which of the muscles attaching to the transverse process of typical thoracics are examples of the transversospinalis muscle group?

A

the semispinalis, multifidus, and rotators

318
Q

How can you distinguish between a T2-T4 from T5-T8 segment using the articular process?

A

at T2-T4 the width between the superior articular processes is greater than the width between the inferior articular processes of the vertebra
at T5-T8 the width between the superior articular processes is equal to or the same as the width between the inferior articular processes of that vertebra

319
Q

How does the transverse diameters of the articular processes compare in the T2-T4 region?

A

the superior articular process transverse diameter is greater than the inferior articular process transverse diameter for a given segment

320
Q

How do the transverse diameters of the articular processes compare in the T5-T8 region?

A

the superior articular process transverse diameter is the same as or equal to the inferior articular process transverse diameter for a given segment

321
Q

What is the angulation of the articular facet of a typical thoracic?

A

about ten to twenty degrees from the coronal plane; sixty degrees from the horizontal plane

322
Q

What is the orientation of the superior articular facet of a typical thoracic?

A

they face backward, upward, and lateral (BUL)

323
Q

What is the orientation of the inferior articular facet of a typical thoracic?

A

they face forward, downward, and medial (ForMeD)

324
Q

What is the curvature of the superior articular facet of a typical thoracic?

A

they are slightly convex

325
Q

What is the curvature of the inferior articular facet of a typical thoracic?

A

they are slightly concave

326
Q

What is the joint classification of the articular facet joint?

A

synovial plane (diarthrosis arthrodia) joint

327
Q

How many synovial joints are present at a typical thoracic?

328
Q

Identify the synovial joint surfaces present on a typical thoracic.

A 
two superior costal demi-facets 
two inferior costal demi-facets 
two transverse costal facets 
two superior articular facets 
two inferior articular facets
329
Q

How many synovial joint surfaces for ribs are present on a typical thoracic?

330
Q

Identify the synovial joint surfaces for ribs that are present on a typical thoracic.

A

two superior costal demi-facets
two inferior costal demi-facets
two transverse costal facets

331
Q

What is the relationship of the inferior articular process and the lamina?

A

they blend together

332
Q

What name is given to the region between the superior and inferior articular processes in the typical thoracics?

A

the pars interarticularis

333
Q

What is the pars interarticularis?

A

the region between the superior and inferior articular processes

334
Q

What part of a vertebra arises laterally from the pars interarticularis?

A

the transverse process

335
Q

What part of a vertebra arises medially from the pars interarticularis?

A

the lamina

336
Q

What is the orientation of the spinous process of a typical thoracic?

A

they slant backward and downward

337
Q

What is the name given to the overlap of spinous processes in the thoracic region?

A

imbrication

338
Q

What is imbrication?

A

the overlap of spinous processes

339
Q

Imbrication will be more pronounced for what region of the throacics?

340
Q

Which thoracic has the longest spinous process?

341
Q

How will the angulation of the spinous process be measured?

A

from the horizontal plane to the undersurface of the spinous process

342
Q

What is the angulation of the spinous process in the typical thoracic region?

A

the undersurface of T2-T4 spinous processes will angle up to forty degrees from the horizontal plane
the undersurface of T5-T8 spinous processes will angle up sixty degrees from the horizontal planes

343
Q

What is the angulation of the spinous process of T2-T4?

A

the undersurface of T2-T4 spinous processes will angle up to forty degrees from the horizontal plane

344
Q

What is the angulation of the spinous process of T5-T8?

A

the undersurface of T5-T8 spinous processes will angle up to sixty degrees from the horizontal plane

345
Q

Which vertebrae will have a spinous process angulation of up to forty degrees?

346
Q

Which vertebrae will have a spinous process angulation of up to sixty degrees?

347
Q

What is the name of the osseous feature at the tip of the spinous process?

A

the spinous tubercle

348
Q

What ligaments attach to the spinous process of a typical thoracic?

A

the interspinous and supraspinous ligaments

349
Q

What joint classification is associated with typical thoracic spinous process ligaments?

A

fibrous (amphiarthrosis) syndesmosis joint

350
Q

Which muscles may attach to the spinous process of a typical thoracic?

A

trapezius, latissimus dorsi, rhomboid major, serratus posterior superior, splenius cervicis, splenius capitis, spinalis thoracics, spinalis cervicis, spinalis capitis, semispinalis thoracis, multifidus, rotator longus, rotator brevis, and interspinalis

351
Q

What is the muscle layer - muscle example combination for muscles attaching to the spinous process in the typical thoracics?

A

layer one - trapezius, latissimus dorsi
layer two - rhomboid major
layer three - serratus posterior superior
layer four - spinalis thoracis, spinalis cervicis, spinalis capitis
layer five - semispinalis thoracis, multifidus, rotator longus, rotator brevis

352
Q

Which muscles attaching to the spinous process of a typical thoracic are not included in any muscle layer of the true back?

A

splenius cervicis, splenius capitis, and interspinalis

353
Q

What joint classifications are present at every typical thoracic vertebra?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis, and synovial plane (diarthrosis arthrodia)

354
Q

The fibrous (amphiarthrosis) syndesmosis joint will occur at what parts of a typical thoracic vertebra?

A

vertebral body, lamina, transverse process, and spinous process

355
Q

At what part(s) of a typical thoracic vertebra will the cartilaginous (amphiarthrosis) symphysis joint be observed?

A

vertebral body

356
Q

At what part(s) of a typical thoracic vertebra will the synovial plane (diarthrosis arthrodia) joint be observed?

A

vertebral body, transverse process, and articular process

357
Q

Which thoracic segments are considered the atypical throacics?

A

T1, T9-T12

358
Q

What is the outline of the vertebral body of T1 from superior view?

A

somewhat rectangular with curved anterior margins

359
Q

What is the appearance of the vertebral body of T1 from the anterior view?

A

both sides will appear to be scalloped (indented) between the epiphyseal rims

360
Q

What is the height pattern of the T1 vertebral body?

A

the posterior height is greater than the anterior height by one to two millimeters

361
Q

What is the appearance of the superior surface of the vertebral body of T1?

A

it is somewhat cup-shaped with elevations at the posterior and lateral margin

362
Q

What may the elevations on the vertebral body of T1 represent?

A

uncinate processes

363
Q

What is the appeatance of the inferior surface of the vertebral body of T1?

A

typically flat, lacking anterior and posterior lips characteristic of the cervicals

364
Q

What joints are identified at the vertebral body of T1?

A

vertebral body to the longitudinal ligaments at the epiphyseal rims
vertebral body to vertebral body via the intervertebral discs
vertebral body to the head of a rib (costocentral joint)

365
Q

What joint classifications are identified at the vertebral body of T1?

A

fibrous (amphiarthrosis) syndesmosis, cartiaginous (amphiarthrosis) symphysis, and synovial plane (diarthrosis arthrodia)
the modified synovial saddle (diarthrosis sellar) is only observed as an anatomical variation

366
Q

What fibrous (amphiarthrosis) syndesmosis joints form at the T1 vertebral body?

A

superior and inferior epiphyseal rims to anterior longitudinal ligament
supeior and inferior epiphyseal rims to posterior longitudinal ligament

367
Q

What are the cartilaginous (amphiarthrosis) symphysis joints at the T1 vertebral body?

A

superior epiphyseal rim to intervertebral disc

inferior epiphyseal rim to intervertebral disc

368
Q

What are examples of synovial plane (diarthrosis arthrodia) joints at the T1 vertebral body?

A

superior costal facet to articular surface of the head of the first rib
inferior costal demi-facet to superior articular surface of the head of the second rib

369
Q

How many synovial joints are formed at the vertebral body of T1?

A

four normally

370
Q

How many symphysis joints are formed with the vertebral body of T1?

371
Q

How many syndesmosis joints are formed at the vertebral body of T1?

A

typically four are identified (as many as eight if the rib articulation is included)

372
Q

How many joints are formed at the vertebral body of T1?

A

typically ten (fourteen if the rib ligaments are included)

373
Q

What is the name given to the joint formed between the vertebral body and rib?

A

costocentral joint

374
Q

How many costocentral joints are formed at the vertebral body of T1?

375
Q

What synovial joint surfaces are present on the T1 vertebral body?

A

the right and left superior costal facet

the right and left inferior costal demi-facet

376
Q

What is the relationship between the vertebral body surface and the rib head surface in the costocentral joints of T1?

A

the superior costal facet of the vertebral body will joint completely with the articular surface of the head of the first rib
the inferior costal demi-facet of the vertebral body will joint with the superior articular surface of the head of the second rib

377
Q

What is the rib - vertebral body combination at the intervertebral foramen for the eight cervical nerve?

A

the superior costal facet of T1 will joint with the articular surface of the head of the first rib

378
Q

What is the rib - vertebral body combination at the intervertebral foramen for the first thoracic nerve?

A

the inferior costal facet of T1 will joint with the superior articular surface of the head of the second rib
the superior costal demi-facet of T12 will joint with the inferior articular surface of the head of the second rib

379
Q

What ligament supports the costocentral joint of the first rib?

A

the costocentral stellate/radiate ligament

380
Q

What ligaments support the costocentral joint of the second rib?

A

the costocentral stellate/radiate ligament and the costocentral interarticular or intra-articular ligament

381
Q

The costocentral stellate/radiate ligament will attach to what features?

A

the head of the rib and the vertebral bodies and intervertebral disc at the costocentral joint

382
Q

The costocentral stellate/radiate ligament will attach to which segment(s) at the C8 spinal nerve intervertebral foramen?

A

the vertebral body of C7 and the vertebral body of T1

383
Q

The costocentral stellate/radiate ligament will attach to which segment(s) at the T1 spinal nerve intervertebral foramen?

A

the vertebral body of T1 and the vertebral body of T2

384
Q

What does the costocentral intra-articular or interarticular ligametn connect to?

A

the interarticular or intra-articular crest of the head of the rib and the intervertebral disc

385
Q

Which muscle(s) is attached to the vertebral body of T1?

A

the longus colli

386
Q

What is the position and direction of the pedicle from the vertebral body of T1?

A

the pedicle arises from the upper third of the vertebral body and projects posterior and slightly laterally

387
Q

Which spinal nerve - vertebral notch or incisure combination is present at T1?

A

C8 spinal nerve - the superiorvertebral notch or incisure of T1
T1 spinal nerve - the inferior vertebral notch or incisure of T1

388
Q

What is the direction of the transverse process at T1?

A

the transverse process projects nearly straight out into the lateral plane

389
Q

What is present at the tip of the transverse process of T1?

A

the transverse tubercle

390
Q

What is present on the transverse tubercle of T1?

A

the transverse costal facet

391
Q

What is the rib - transverse process relationship for T1?

A

the first rib articulates with the transverse costal facet of T1

392
Q

What is the orienation of the transverse costal facets for T1?

A

they face forward and outward

393
Q

What is the classification of the costotransverse joint?

A

synovial plane (diarthrosis arthrodia)

394
Q

What are the osseous parts of the costotransverse joint?

A

the transverse costal facet and the articular surface of the tubercle of a rib

395
Q

What ligaments support the costotransverse joint of T1?

A

the inferior costotransverse and lateral costotransverse ligaments

396
Q

What ligament is absent at the costotransverse joint of T1?

A

the superior costotransverse ligament

397
Q

What ligaments attach to the transverse process of T1?

A

intertransverse, capsular costotransverse, superior costotransverse, ifnerior costotransverse and lateral costotransverse

398
Q

Which costotransverse joint will the supeior costotransverse ligament of T1 support?

A

the second rib costotransverse joint

399
Q

The superior costotransverse ligament of rib two will attach to which vertebral feature?

A

the transverse process of T1

400
Q

The superior costotransverse ligament of T1 will attach to which rib?

A

the second rib

401
Q

The inferior costotransverse ligament of rib on will attach to which vertebral feature?

A

the transverse process of T1

402
Q

The inferior costotransverse ligament of T1 will attach to which rib?

A

the first rib

403
Q

The lateral costotransverse ligament of rib one will attach to which segmental bony feature?

A

the transverse process of T1

404
Q

The lateral costotransverse ligament of T1 will attach to which rib?

A

the first rib

405
Q

What joint classification is associated with the intertrasnversarii, superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments?

A

fibrous (amphiarthrosis) syndesmosis

406
Q

What muscles attach to the transverse process of T1?

A

longissimus thoracis, longissimus cervicis, longissimus capitis, semispinalis cervicis, semispinalis capitis, multifidus, rotator longus, rotator brevis, intertransversarri, levator costarum brevis

407
Q

Which specific transversospinalis muscle is absent from T1?

A

semispinalis thoracis

408
Q

What is the orientation of the superior articular facet of T1?

A

they face backward, upward, and lateral (BUL)

409
Q

What is the orientation of the inferior articular facet of T1?

A

they face forward, downward, and medial (ForMeD)

410
Q

What is the curvature of the superior articular facet of T1?

A

they are slightly convex

411
Q

What is the curvature of the inferior articular facet of T1?

A

they are slightly concave

412
Q

What is the classification of the articular facet joint?

A

synovial plane (diarthrosis arthrodia)

413
Q

How many synovial joints are present at T1?

414
Q

Identify the synovial joint surfaces present at T1.

A

two superior costal facets, two inferior costal demi-facets, two transverse costal facets, two superior articular facets, two inferior articular facets

415
Q

How many synovial joint surfaces for ribs are present at T1?

416
Q

Identify the synovial joint surfaces for ribs that are present at T1.

A

two superior costal facets, two inferior costal demi-facets, two transverse costal facets

417
Q

What is the angulatin of the spinous process of T1?

A

the undersurface of the T1 spinous process will be nearly horizontal from the horizontal plane

418
Q

What name is used to identify the topographical landmark at the base of the neck?

A

vertebral prominence

419
Q

Which vertebrae have been identified as forming the vertebral prominence?

A

C6, C7, T1

420
Q

What is the gender bias associated with T1 as the vertebral prominence?

A

males (9%) are more likely than females (6%)to demonstrate T1 as the vertebral prominence

421
Q

What is the name of the osseous feature at the tip of the spinous process?

A

the spinous tubercle

422
Q

What ligaments attach to the spinous process of T1?

A

the interspinous and supraspinous ligaments

423
Q

Ligaments attaching to the spinous process of T1 have what joint classification?

A

fibrous (amphiarthrosis) syndesmosis

424
Q

What muscles attach to the spinous process of T1?

A

the trapezius, rhomboid minor, serratus posterior superior, splenius capitis, spinalis thoracis, spinalis cervicis, spinalis capitis, semispinalis thoracis, multifidus, rotator longus, rotator brevis, and interspinalis

425
Q

Which of the muscles of the five layers of the true back are present at the spinous process of T1?

A

the trapezius, rhomboid minor, serratus posterior superior, spinalis thoracis, spinalis cervicis, spinalis capitis, semispinalis thoracis, multifidus, rotator longus, rotator brevis

426
Q

What is the muscle layer - muscle example combination for muscles attaching to the spinous process of T1?

A

layer one - trapezius
layer two - rhomboid minor
layer three - serratus posterior superior
layer four - spinalis thoracis, spinalis cervicis, spinalis capitis
layer five - semispinalis thoracis, multifidus, rotator longus, rotator brevis

427
Q

Which muscles attaching to the spinous process of T1 are not included in any muscle layer of the true back?

A

splenius capitis and interspinalis

428
Q

What joint classifications are present at the T1 vertebra?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis, and synovial plane (diarthrosis arthrodia)

429
Q

At what part(s) of T1 will a fibrous (amphiarthrosis) syndesmosis joint be observed?

A

vertebral body, lamina, transverse process, and spinous process

430
Q

At what part(s) of T1 will the cartilaginous (amphiarthrosis) symphysis joint be observed?

A

vertebral body

431
Q

At what part(s) of T1 will the synovial plane (diarthrosis arthrodia) joint be observed?

A

vertebral body, transverse process, articular process

432
Q

Which thoracic segments are considered atypical thoracics?

A

T1, T9-T12

433
Q

What is the height pattern of the T9 vertebral body?

A

the posterior height is greater than the anterior height by one to two millimeters

434
Q

What is the height pattern of intervertebral discs in the thoracic region?

A

the intervertebral discs are rather planar or flat with no apparent height difference between anterior and posterior heights

435
Q

What is the principal cause of the posterior curve of the thoracic spine?

A

the vertebral body height difference

436
Q

What is the direction of the anterior - posterior curve directions in the thoracic spine?

437
Q

What is another way of naming a posterior curve pattern?

A

a kyphotic curve

438
Q

What structures joint at the vertebral body of T9?

A

anterior longitudinal ligament, posterior longitudinal ligament, intervertebral discs, and the head of a rib(s)

439
Q

What joint classifications are identified at the vertebral body of T9?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis, and synovial plane (diarthrodia arthrodia)

440
Q

What fibrous (amphiarthrosis) syndesmosis joints form at the T9 vertebral body?

A

superior and inferior epiphyseal rims to anterior longitudinal ligament
superior and inferior epiphyseal rims to posterior longitudinal ligament

441
Q

What cartilaginous (amphiarthrosis) symphysis joints form at the T9 vertebral body?

A

superior and inferior epiphyseal rims to intervertebral disc

442
Q

What are the examples of synovial (diarthrosis) arthrodia joints at the T9 vertebral body?

A

superior costal demi-facet to inferior articular surface of the rib head (right and left)
inferior costal demi-facet to superior articular surface of the rib head (right and left)

443
Q

How many synovial joints are formed at the vertebral body of T9?

444
Q

How many symphysis joints are formed with the vertebral body of T9?

445
Q

How many syndesmosis joints are formed at the vertebral body of T9?

A

typically four are identified (as manay as eight if the costocentral stellate/radiate ligaments are included)

446
Q

How many joints are typically formed at the vertebral body of T9?

A

typically ten (fourteen if the costocentral stellate/radiate ligaments are included)

447
Q

What is the name given to the joint formed between the vertebral body and rib?

A

costocentral joint

448
Q

How many costocentral joints are typically formed at the vertebral body of T9?

449
Q

What synovial joint surfaces are present on the vertebral body of T9?

A

right and left superior costal demi-facets; right and left inferior costal demi-facets

450
Q

Which synovial joint surfaces may be absent from the vertebral body of T9?

A

inferior costal demi-facets

451
Q

What is the relationship between the vertebral body surface and the rib head/capitulum surface for the costocentral joint of T9?

A

the superior costal demi-facets of T9 will joint with the inferior articular surfaces on the head of the ninth rib
the inferior costal demi-facets of T9 will joint with the superior articular surfaces on the head of the tenth rib

452
Q

Which of the demi-facets on the vertebral body of T9 is larger?

A

the superior costal demi-facet

453
Q

How does the superior costal demi-facet compare in size with those T2-T8?

A

it is larger

454
Q

What feature will provide assistance in maintaining the stability of the intervertebral foramen at T9?

A

the costocentral joint or ribs

455
Q

What ligaments support the costocentral joint?

A

the costocentral stellate/radiate ligament and the costocentral interarticular or intra-articular ligament

456
Q

The costocentral stellate/radiate ligaments will attach to what features?

A

the head of the rib, the vertebral bodies of the vertebral couple and the intervertebral disc

457
Q

What is the size relationship between the articulating surface on the head of the rib and the costal demi-facet surface?

A

the rib surface is greater than the costal demi-face surface

458
Q

What is present at the tip of the transverse process of T9?

A

the transverse tubercle

459
Q

What is present on the transverse tubercle of T9?

A

the transverse costal facet

460
Q

What is the rib - transverse process relationship for T9?

A

the ninth rib articulates with T9 transverse process

461
Q

What is the orientation of the transverse costal facets for T9?

A

forward, outward, and upward

462
Q

What is the classification of the costotransverse joint?

A

synovial plane (diarthrosis arthrodia)

463
Q

What are the osseous parts of the costotransverse joint?

A

the transverse costal facet and the articular surface of the tubercle of a rib

464
Q

What ligaments support the costotransverse joint of T9?

A

the superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments

465
Q

What ligaments attach to the transverse process of T9?

A

intertransverse, capsular costotransverse, superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments

466
Q

Which costotransverse joint will the superior costotransverse ligament of T9 support?

A

the tenth rib costotransverse joint

467
Q

The superior costotransverse ligament of rib nine will attach to which vertebral feature?

A

the transverse process of T8

468
Q

The superior costotransverse ligament of T9 will attach to which rib?

A

the tenth rib

469
Q

The inferior costotransverse ligament of rib nine will attach to twhich vertebral feature?

A

the transverse process of T9

470
Q

The inferior costotransverse ligament of T9 will attach to which rib?

A

the ninth rib

471
Q

The lateral costotransverse ligament of rib nine will attach to which segmental bony feature?

A

the transverse process of T9

472
Q

The lateral costotransverse ligament of the transverse process of T9 attaches to which rib?

A

the ninth rib

473
Q

What joint classification is associated with the intertransverse, superior costotransverse, inferior costotransverse and lateral costotransverse ligaments?

A

fibrous (amphiarthrosis) syndesmosis

474
Q

Which muscles attach to the transverse process of T9?

A

the longissimus thoracis, semispinalis thoracis, multifidus, rotator longus, rotator brevis, intertransversarii, levator costarum longus, and levator costarum brevis

475
Q

What is the orientation of the superior articular facets of T9?

A

they face backward, upward, and lateral (BUL)

476
Q

What is the orientation of the inferior articular facets of T9?

A

they face forward, downward, and medial (ForMeD)

477
Q

What is the joint classification of the articular facet joint?

A

synovial plane (diarthrosis arthrodia)

478
Q

How many synovial joints are typically present at T9?

479
Q

Identify the synovial joint surfaces typically present on T9.

A

two superior costal demi-facets, two inferior costal demi-facets, two superior articular facets, two inferior articular facets, and two transverse costal facets

480
Q

How many synovial joint surfaces for ribs are typically present on T9?

481
Q

Identify the synovial joint surfaces for ribs that are typically present on T9.

A

two superior costal demi-facets, two inferior costal demi-facets, and two transverse costal facets

482
Q

Which rib related facet may be absent on T9?

A

the inferior costal demi-facet

483
Q

Which is the last thoracic vertebra to have an inferior costal demi-facet?

484
Q

What is the orientation of the spinous process of T9?

A

posterior and slightly inferior, it will shorten and become more horizontal

485
Q

What is the length of the spinous process of T9?

A

it will shorten significantly from the long spinous process of T8

486
Q

What is the generic appearance of the spinous process of T9?

A

shorter and more horizontal

487
Q

What ligaments attach to the spinous process of T9?

A

the interspinous and supraspinous ligaments

488
Q

What joint classification is associated with ligaments attaching to the T9 spinous process?

A

fibrous (amphiarthrosis) syndesmosis joint

489
Q

What muscles attach to the spinous process of T9?

A

the trapezius, latissimus dorsi, multifidus, rotator longus, rotator brevis, and interspinalis

490
Q

Which muscles are conspicuously absent at the T9 spinous process?

A

spinalis and semispinalis

491
Q

Which thoracic segments are considered the atypical thoracics?

A

T1, T9-T12

492
Q

What is the height pattern of the T10 vertebral body?

A

the posterior height is greater than the anterior height by one to two millimeters

493
Q

What is the height pattern of intervertebral discs in the thoracic region?

A

the intervertebral discs are rather planar or flat with no apparent height difference between anterior and posterior heights

494
Q

What is the principal cause of the posterior curve of the thoracic spine?

A

the vertebral body height differences

495
Q

What is the direction of the anterior-posterior curve directions in the thoracic spine?

496
Q

What is another way of naming a posterior curve pattern?

A

a kyphotic curve

497
Q

What joint classifications are identified at the vertebral body of T10?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis, and synovial plane (diarthrosis arthrodia)

498
Q

What joints are identified at the vertebral body of T1-?

A

vertebral body to the longitudinal ligaments at the epiphyseal rims
vertebral body to vertebral body via the intervertebral disc
vertebral body to head of a rib (costocentral joint)

499
Q

What are the fibrous (amphiarthrosis) syndesmosis joints at the T10 vertebral body?

A

superior and inferior epiphyseal rims to anterior longitudinal ligament
superior and inferior epiphyseal rims to posterior longitudinal ligament

500
Q

What are the cartilaginous (amphiarthrosis) symphysis joints at the T10 vertebral body?

A

superior and inferior epiphyseal rims to an intervertebral disc

501
Q

What are the synovial plane (diarthrosis arthrodia) joints at the T10 vertebral body?

A

right and left superior costal demi-facets to inferior articular surface of the rib heads

502
Q

How many synovial joints are formed at the vertebral body of T10?

503
Q

How many symphysis joints are formed with the vertebral body of T10?

504
Q

How many syndesmosis joints are formed at the vertebral body of T10?

A

typically four are identified (as many as eight if the costocentral stellate/radiate ligaments are included

505
Q

How many joints are typically formed at the vertebral body and rib?

A

typically eight (twelve if the costocentral stellate/radiate ligaments are included)

506
Q

What is the name given to the joint formed between the vertebral body and rib?

A

costocentral joint

507
Q

How many costocentral joints are tyipcally formed at the vertebral body of T10?

508
Q

What synovial joint surfaces are present on the vertebral body of T10?

A

the right and left superior costal facet

509
Q

Which synovial joint surface is absent from the vertebral body of T10?

A

inferior costal demi-facets

510
Q

What is the relationship between the vertebral body surface and the rib head surface for the costocentral joint of T10?

A

the superior costal facet of T10 will joint with the inferior articular surface of the head of the tenth rib

511
Q

What is the rib - vertebral body combination at the intervertebral foramen for the ninth thoracic nerve?

A

the inferior costal demi-facet of T9 may joint with the small superior articular surface of the head of the tenth rib
the superior costal facet of T10 will joint with the large inferior articular surface of the head of the tenth rib

512
Q

What is the rib - vertebral body combinatiotypically present at the intervertebral foramenfor the tenth thoracic nerve?

A

the superior costal facet of T11 will joint with the articular surface of the head of the eleventh rib

513
Q

What ligaments support the costocentral joint?

A

the costocentral stellate/radiate ligametn and the costocentral interarticular or intra-articular ligament

514
Q

The costocentral stellate/radiate ligametn will attach to waht features?

A

the head of the rib and the vertebral bodies and intervertebral disc at the costocentral joint

515
Q

What does the costocentral intra-articular or interarticular ligament connect to?

A

the interarticular or intra-articular crest of the head of the rib and the intervertebral disc

516
Q

What feature is very commonly observed on the lamina of T10?

A

para-articular processes

517
Q

Para-articular processes are more commonly observed on which segment of the spine?

518
Q

What is present at the tip of the transverse process of T10?

A

the transverse tubercle

519
Q

What is typically present on the trasnverse tubercle of T10?

A

the transverse costal facet

520
Q

What part of the transverse process may be absent on T10?

A

the transverse costal facet

521
Q

What is the rib - transverse process relationship for T10?

A

the tenth rib articulates with T10 transverse process

522
Q

What is the orientation of the transverse costal facets for T10?

A

forward, outward, and upward

523
Q

What is the classification of the costotransverse joint?

A

synovial plane (diarthrosis arthrodia)

524
Q

What are the osseous parts of the costotransverse joint?

A

the transverse costal facet and the articular surface of the tubercle of a rib

525
Q

What ligaments support the costotransverse joint of T10?

A

the supeiror costotransverse, inferior costotransverse, and lateral costotransverse ligaments

Spinal Anatomy (9 decks)

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