Cervical vertebrae Flashcards
1
Q
typical cervical vertebra:
A
- short body, concave sup
- uncinate process = uncovertebral j
- transverse process + foramen
- spinous process short/ bifid
- triangular vertebral foramen
2
Q
atypical vertebrae: C1
A
- articulates w occiput
- sup articular facets (concave) w occipital condyles
- inf faces (flat)
- no vertebral body
- lateral masses
- ant/ post arch
3
Q
C1 ligs:
A
- transverse: holds dens to ant arch
- alar (2)
- sup/inf longitudinal bands = cruciform
4
Q
atlantodento joint: classify
A
- synovial pivot
5
Q
significance of alar lig:
A
- prevent excess rotation of atlantoaxial j
- superolateral facets on dens for lig
6
Q
cervical vertebrae: movement
A
- free flexion
- extension
- some lateral flexion
- restricted rotation
7
Q
cervical vertebrae: features to allow greatest range and variety of movement
A
- relative thickness of IV discs
- nearly horizontal orientation of articular facets
- small amount of surrounding body mass
8
Q
os odontoideum:
A
separation of dens from C2
9
Q
C7 features:
A
- long spinous process
- small/ absent transverse foramen
10
Q
cervical vertebrae: list joints
A
- atlanto occipital
- atlanto axial
- atlanto dento
- zygopophyseal
- uncovertebral
- intervertebral discs
11
Q
list all ligs incl atlantoaxial ones: (10)
A
- tectorial membrane
- transverse lig
- apical
- alar
- ant/ post longitudinal
- cruciform lig
- ligamentum flavum
- supraspinous
- ligamentum nuchae
- interspinous
12
Q
how x-rays work:
A
- if x-rays hit the film, will become blackened
- depends on how many rays are attenuated (absorbed) by structures passing through
- superimposed structures
13
Q
x-rays: list least to most attentuation
A
- air (black)
- fat
- water
- bone
- metal
14
Q
list lines in cervical spine:
A
- ant vertebral
- post vertebral (George’s line)
- spinolaminar junction
- spinous process
15
Q
normal shape of lines in cervical spine:
A
- curved, or straight
- smooth progression
