Exam 2 Cervical Spine Part 1 Flashcards Preview

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Flashcards in Exam 2 Cervical Spine Part 1 Deck (28):
1

T/F: The cervical spine is associated with fewer muscles than any other region of the spine.

False; associated with more muscle than any other

2

What is the most mobile region of the vertebral column?

cervical spine

3

What are the two main jobs of the cervical spine?

maintaining head posture and allowing a great deal of mobility

4

T/F: The cervical curve is the least distinct of spinal curves.

True

5

T/F: The cervical curve is considered a primary curve.

False; considered secondary (compensatory)

6

What bones make up the upper cervical spine?

occiput, atlas, and axis

7

What is the most complex region of the axial skeleton?

upper cervical spine

8

T/F: there are no IVD in the upper cervical spine.

True

9

What type of orthogonal motion is greatest at the Atlanto-occipital articulation?

combined thetaX (flexion/extension)

10

What type of orthogonal motion is greatest at the atlanto-axial articulation?

one sided thetaY (axial rotation)

11

T/F: The superior articular processes of Atlas are convex and face slightly medial.

False; are concave and face slightly medial.

12

T/F: The shapes of the anatomy at the atlanto-occipital articulation allow for great rotation.

False; cuplike structure allows for little rotation

13

What is the range of X axis rotation at occiput-atlas?

mean value between 14-35 degrees

14

What is the range of Y axis rotation at occiput-atlas?

4-8 degrees

15

Why is lateral flexion at occiput-atlas unique?

Not "physiological" because the occiput is unseated from the joint on this side

16

What motion is limited at occiput-atlas by the alar ligament?

Z axis rotation

17

Does the inferior articular process of C1 face slightly medial or lateral?

medial

18

T/F: The combined theta X rotation at C1-C2 has a range of 20 degrees.

True

19

T/F: Most dens have a slight curvature.

True

20

T/F: C2 allows for lots of X axis rotation.

False; Y axis rotation (slide 21)

21

At the limits of rotation, the lateral atlanto-axial joints are almost subluxated. What ligaments restrain this motion?

alar ligaments

22

How much of the rotation of the neck is C2 responsible for?

over 50%

23

T/F: Both of the articular surfaces at C1-C2 are convex which is why theta Y is coupled with Ytranslation at this joint.

True; as atlas rotates on axis, a subtle vertical displacement occurs

24

Theta Z at C1-C2 is limited to about 5 degrees. Why?

Lateral bending is limited here by the alar ligaments and the bony anatomy

25

What ligament limits Z axis translation at C1-C2?

Transverse ligament of atlas (tight ring around dens)

26

T/F: According to Panjabi and White, there is no X axis translation at C1-C2, only apparent translation.

True

27

T/F: As the head is laterally flexed, the spinous process of C2 will rotate toward the concavity of the lateral bend.

False; toward the convexity of the lateral bend (spinous to contralateral side)

28

What motion is coupled with lateral bending in the cervical spine?

axial rotation