Exam 2- Quiz Questions Flashcards
What ossesous parts form the typical cervical vertebra transverse processes?
Costal element, anterior tubercle, costotransverse bar, posterior tubercle, true transverse process
What muscles will attach to the anterior tubercle of a typical cervical vertebra ?
Anterior scalene, longus capitis, longus colli, anterior intertransversarii
What muscles may attach to the posterior tubercle of a typical cervical vertebra ?
Splenius cervicis, iliocostalis cervicis, longissimus cervicis, levator scapula, middle scalene, rotators, and posterior intertransversarii
What muscles will attach to the costotransverse bar?
Middle scalene and posterior intertransversarii
What produces the primary tension on the transverse process that will cause remodeling in the anterolateral and inferior directions ?
Cervical spinal nerves as they are directed anteriorlaterally and inferiorly to form the cervical and brachial plexus
What is the orientation and angulation of a typical cervical transverse process?
60 degrees anterolaterally (from the midsagittal plane) 15 degrees inferiorly (from the horitzonal plane)
What is the name given to the modification of the anterior tubercle of the C6 transverse process?
The carotid tubercle
What will occupy the typical cervical vertebra transverse foramen?
The vertebral artery, vertebral venous plexus and postganglionic sympathetic motor nerve fibers
What is the name of the surface feature observed between the ends of the articular pillar?
The groove/sulcus for the dorsal ramus of the cervicals spinal nerve
What is the classic angulation of typical cervical articular facets?
40 to 45 degree from the coronal plane
Recent work suggest what angulation for typical cervical articular facets?
55 t0 6degrees
What is the orientation of the typical cervical articular facet?
BUM
Backwards
Upward
Medial
What is the orientation of the typical cervical inferior articular facet?
FoLD
Forward,
Lateral
Downward
What typical muscles attach to typical cervical articular processes?
The longissimus capitis, longissimus cervicis, semispinalis capitis, semispinalis cervicis, multifidis, and rotators
What muscles blend with the capsular ligament of cervical zygapophysis ?
Semispinalis capitis,multifidis and rotator longus
What is the joint classification for the typical cervical zygapophysis?
Synovial plane (diarthrosis arthrodia) joint
What modification of the synovial joint are observed in the cervical spine?
Meniscoidal folds
What function will menisodial folds provide in the cervical zygapophysis?
They are assumed to distribute pressure across the joint surface
The greatest range of flexion - extension among the typical cervical vertebrae occurs at which vertebral couple?
C5/C6
What motions are coupled in the cervical spine?
Lateral bending and axial rotation
Ranges of coupled motion among the typical cervical vertebrae will begin to decrease at what cervical vertebral couple?
C2/c3
C3/c4
C4/c5
Ranges of coupled motion among the typical cervical vertebrae will begin to decrease at what cervical vertebral couple?
C5/C6
What is the usual condition for the Caucasian typical cervical spinous process?
They are bifid
What is the usual condition for the African American typical cervical spinous process?
The non-bifid
What muscles may attach to the typical cervical spinous process?
The spinalis cervicis, spemispinalis cervicis, semispinalis thoracis, multifidis, rotators, and interspinalis
What will form the anterior boundary of a typical cervical intervertebral foramen?
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
What will form the posterior boundary of typical cervical intervertebral foramen?
The inferior articular process (post-zygapophysis) the superior articular process (pre-zygapophysis) the capsular ligament and the ligament flavum
What will form the superior boundary of a typical cervical intervertebral foramen?
The inferior vertebral notch or inferior vertebral
What will the inferior boundary of typical cervical intervertebral foramen?
The superior vertebral notch or superior vertebral notch
What is the unique anterior boundary of the intervertebral foramen for the C4 spinal nerve?
The lateral groove of C3 and uncinate process of C4 forming the joint of luschka
What is the name of first cervical vertebra?
Atlas
What features are lacking at C1?
Vertebral body, pedicle, a spinous process and the intervertebral disc
What is thought to represent the pedicle at C1?
The anterior arch
What osseous modification is observed to the front of the anterior arch of C1?
The anterior tubercle
What muscle attaches to the anterior arch of C1?
Longus colli
What ligaments will attach tot he anterior arch of C1?
The anterior longitudinal, anterior Atlanta’s-occipital ligament, and anterior atlanto-axial ligament
What is observed on the back of the anterior arch of C1?
The fovea dentis
What joint classifications are observed on the anterior arch of C1?
Fibrous (amphiarthosis) syndesmosis joint and synovial pivot (diathrosis trochoid )joints
What is the morphology of the superior articular facet of C1?
They are elliptical, closer together in front and often demonstrate an elevation subdividing the facet surface into two separate surfaces
What is the orientation of the superior superior articular facet of C1?
BUM
Backward
Upward
Medial
What is the joint classification of the atlanto-occipital zygapophysis?
Synovial (diarthosis) ellipsoidal joint
What are the morphological characteristics of the inferior articulate facet of C1?
Asymmetrical, slightly concave or flattened
What is the orientation of the inferior articular facet of C1?
BUM
What is the joint classification of atlanto-axial zygapophysis?
Synovial plane ( diarthrosis arthrodia) joint
What is the name of the rounded elevation on the medial aspect of the lateral mass of C1?
Tubercle for the transverse atlantal ligament
What muscle attach to the lateral mass of C1?
Levator scapula, splenius cervicis and recurs capitis anterior
What part of the C1 represents the spinous process?
Posterior tubercle of the posterior arch
What is the distance form the posterior tubercle of the posterior arch to the skin in each gender?
Males: 55mm
Females : 37 mm
What attached to the posterior tubercle of the posterior arch of C1?
Rectus capitis posterior minor muscle and ligamentum nuchae
What superior surface modifications of the posterior arch of C1 are present?
Groove/sulcus for the vertebral artery and arcuate rim
What attaches to the arcuate rim of C1?
The posterior atlanto-occipital ligament
Ossification of the free margin of the posterior atlanto-occipital ligament results in which atypical bone classification?
Accessory bone
What ist he earliest age of development where ossification of the anterior margin of the posterior atlanto- occipital ligament was observed?
Accessory bone
Based on the amount of ossification of the anterior free margin of the posterior atlanto- occipital ligments what structures will form?
About age 7
Based on the amount of ossification of the anterior free margin of the posterior atlanto-occipital ligament what structure will form?
An incomplete ponticulus posticus or a complete ponticulus posticus
What are the attachment sites of the ponticulus posticulus ?
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
What names are given to the opening formed by the ponticulus posticus?
Arcuate foramen or retroarticular canal
Ponticulus posticus has observed in what ethnic populations?
All ethnic populations studied this far
What ist he general range of the incidence of ponticulus posticus in the pop. Studied?
1-41%
What is the gender bias now associated with ponticulus posticus?
Female
What is the incidence of complete ponticulus posticus verse and incomplete?
Complete: 15%
Incomplete: 41%
What are the ossesous parts of the transverse process of C1?
Costal element, posterior tubercle and true transverse process
What muscles attach to the transverse process of C1?
Rectus capitis anterior, Rectus capitis lateralis, middle scalene, levator scapula, splenius cervicis, obliques capitis superior, obliquus capitis inferior, and intersversesarii muscles
What sub-occipital muscles are known to have fascial projections attaching to the spinal dura?
Mayodural bridges
What are the lateral bridges of atlas connected to?
The lateral mass and the transverse process of atlas
What forms of the lateral bridge are observed in the population?
Incomplete lateral bridge and complete lateral bridge
What opening is identified when a complete lateral bridge is formed>
The retrotransverse foramen
What are the possible contents of the retrotransverse foramen ?
The vertebral artery, a branch from the subocciptial nerve and veins communicating with the venous sinuses of the neck
Which ponticles (bridges ) of the atlas is most numerous?
Ponticulus posticus
Which of the ponticles (bridges) of atlas is observed only in humans?
Lateral bridges
What is observed in the transverse foramen of C1?
Vertebral artery, vertebral venous plexus, postganglionic symathetic motor nerve fibers
What ist eh gender variation for measurements of the transverse diameter of C1?
Males: 78mm
Females : 72mm
What is the distance from the posterior tubercle of the transverse process of C1 to skin for each gender?
A little over 30 mm for both
What joint classification are observed at C1?
Fibrous ( amphiarthosis) syndesmosis joint Synovial (diarthosis) ellipsoidal joint Synovial pivot ( diarthosis trochoid ) joint Synovial plane ( diarthosis arthrodia) joint
How many synovial joint surfaces are observed at C1?
5
What are the names given to C2?
Axis or epistropheus
What unique vertebral body modification are on C2?
Dens or odontoid process
How many joint surfaces are present on the odontoid process of C2?
5
What are the joint surfaces that are present on the odontoid process of C2?
Facet for the fovea dentis,
Groove for transverse atlantal ligament
Attachment sites for the alar ligaments
Attachment for the apical-dental ligament
What is the name/classification given to the odontoid process when the tip if the dens is directed posterior?
Lordotic dens
What is the name /classication given to the odontoid process when the tip of the dens is directed anterior?
Kyphotic dens
What are the joint surfaces formed by the inferior vertebral body of C2?
Anterior and posterior lip
Right and left lateral grooves
Calcellous bone
How many joints are formed by the inferior part of the vertebral body of C2?
5
What joint classification are present at the vertebral body C2?
Fibrous ( amphiarthosis) syndesmosis
Modified synovial saddle( diarthosis stellar)
Cartilaginous ( amphiarthosis) syndesmosis
How many joint surfaces present at the vertebral body C2?
Ten
What ligament will represent the cranial continuation of the posterior longitudinal ligament?
Membrana tectoria
What ligament forms the anterior boundart of the spinal canal above C2?
Membrana tectoria
What ligament will form form the anterior boundary for the spinal canal below the C2?
Posterior longitudinal ligament
What is the location of the superior vertebral notch of C2?
On the lamina -pedicle junction