7.1: Cervical Spine - Anatomy Flashcards

1
Q

Upper Cervical Spine Area

A

Cervicocephalic/Cervicocranial region

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2
Q

Area for lower cervical spine

A

Cervicobrachial

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3
Q

Cervicocranial region includes what vertebrae?

A

C0-C2

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4
Q

How many degrees of flexion/extension for the atlanto-occipital joint?

A

15 to 20 degrees

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5
Q

What type of joint is the atlanto-occipital joint

A

ellipsoid

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6
Q

The anterior membrane is strengthened by what ligament?

A

anterior longitudinal ligament

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7
Q

What replaces the ligamentum flavum between the atlas and occiput?

A

Posterior membrane

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8
Q

Broad band covering the dens and its ligaments that is found within the vertebral canal and is a continuation of the posterior longitudinal ligament

A

Tectorial membrane

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9
Q

2 strong rounded cords found on each side of the upper dens that passes upward and laterally to attach on the medial side of the occipital condyles

A

Alar ligaments

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10
Q

What does the alar ligament limit

A

flexion and rotation

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11
Q

What ligament plays a major role in stabilizing C1 and C2, especially during rotation?

A

Alar ligament

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12
Q

Most mobile articulation in the cervical spine

A

Atlanto-axial joint (C1-C2)

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13
Q

what type of joint is the atlanto-axial joint

A

pivot

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14
Q

T/F: if a person talks or chews, there is movement in the atlanto-axial joint

A

true

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15
Q

main supporting ligament of the atlanto-axial joint

A

transverse ligament of atlas

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16
Q

The transverse ligament of the atlas is weakened by what conditions?

A

rheumatoid arthritis

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17
Q

As the transverse ligament crosses the dens, how many projections does it give off?

A

2 projections (1 superiorly to the occiput; 1 inferiorly to the axis)

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18
Q

What does the projections of the transverse ligament form?

A

cruciform ligament

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19
Q

T/F: The vertebral artery passes through the C7 transverse foramen

A

False. It passes around the vertebral body, not through the foramen

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20
Q

Pain in the cervicobrachial area is commonly referred where?

A

UE

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21
Q

the vertebral and internal carotid arteries are stressed by what motion of the cervical spine?

A

primarily by rotation, extension and traction; other movements can also stretch the artery

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22
Q

How many degrees of rotation and extension can significantly decrease blood flow of the vertebral artery?

A

20 degrees

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23
Q

4 places where the vertebral artery is most commonly stressed

A

When it enters C6 transverse processes

within the bony canals of the vertebral transverse processes

between C1 and C2

between C1 and the entry into the skull

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24
Q

Out of the 4 areas, which has the greatest potential for problems?

A

Between C1-C2

Between C1 and the entry of the arteries into the skull

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25
Q

Most common mechanism for non-penetrating injury to the vertebral artery (Dutton na nasa Magee)

A

Neck extension, c or s side flexion or rotation

26
Q

How many facet joints in the cervical spine

A

14 facet joints (7 each side)

27
Q

T/F: the upper 4 facet joints in the T1-T2 area is included in cervical spine examination

A

True

28
Q

Presentation of the superior facets

A

upward, backward, and medially

29
Q

Presentation of the inferior facets

A

downward, forward, and laterally

30
Q

The facet joints’ plane facilitate _______ and _____ but prevents _____ and ______

A

Facilitate flexion/extension

Prevents simple rotation and lateral flexion

31
Q

T/F: rotation and side flexion in the facet joint plane both occur with either movement

A

True; Coupled movement

32
Q

Between C0-C2 and C7-T1, side flexion and rotation occur in what directions

A

opposite directions

33
Q

How do the facet joints move

A

by gliding

34
Q

between what level is the greatest flexion/extension movement seen

A

C5-C6

35
Q

T/F: There is almost as much movement at C4-C5 and C6-C7 compared to C5-C6

A

True

36
Q

This amount of movement between C4-C5, C5-C6, and C6-C7 most likely cause what?

A

degeneration

37
Q

CPP of the facet joints

A

complete extension

38
Q

Neutral position of the cervical spine

A

slightly extended

39
Q

what innervates the anterior dura sac, posterior annulus fibrosus, and the posterior longitudinal ligament

A

Recurrent meningeal/sinuvertebral nerve

40
Q

main ligaments for C3-C7

A

anterior longitudinal, posterior longitudinal, ligamentum flavum, supraspinal, and interspinal ligaments

41
Q

T/F: the intertransverse ligaments in the cervical spine are rudimentary

A

True

42
Q

part of the vertebral body that is more pronounced posterolaterally that has the effect of limiting side flexion

A

uncus/uncinate process

43
Q

the uncus and the échancrure of the vertebral body above form what joint?

A

Uncinate Joint/Joints of Luschka

44
Q

What is the échancrure?

A

indentation on the inferolateral aspect of the vertebral body that articulates with the uncus/uncinate process

45
Q

The échancrure is found in what vertebrae?

A

C3-T1

46
Q

at what age is the échancrure first seen?

A

6-9 y/o

47
Q

at what age does the échancrure fully develop?

A

18 years

48
Q

approximately how many percent of the cervical spine’s height does the intervertebral disc make

A

25%

49
Q

T/F: There are no discs between the occiput-C1 and C1-C2

A

True

50
Q

what gives the cervical spine its lordotic shape

A

IV disc

51
Q

innermost part of the iv disc

A

nucleus pulposus

52
Q

function of the nucleus pulposus

A

withstand axial compression and distribute compression forces

53
Q

outer part of the iv disc

A

annulus fibrosus

54
Q

what does the annulus fibrosus withstand

A

tension forces

55
Q

T/F: the iv disc has some innervation on the periphery of the nucleus pulposus

A

False; it is on the periphery of the annulus fibrosus

56
Q

why are there 8 cervical nerve roots

A

there is a nerve root exiting between the occiput and c1

57
Q

how is each nerve root named in the cervical region

A

named after the vertebra below the nerve root (ex: C4-C5 = C5)

58
Q

Why is it that in the cervical spine, the nerve root is named for the vertebra below while the rest of the nerve roots is named for the vertebra above?

A

because of the C8 nerve root

59
Q

T/F: only huge amounts of weight-bearing can lead to spondylitic changes in the facet joints

A

false. even the slightest amount can cause spondylitic change

60
Q

What portion of the cervical transverse process contain the transverse foramen

A

anterior portion

61
Q

the posterior portion of the transverse process has?

A

two articular facets