Cervical spine (articulations, muscle actions, and structures) Flashcards
1
Q
of cervical vertebrae?
A
7
2
Q
Unique characteristics of C1
A
- Atlas
- Holds up skull
- Atlanto-occipital joint
- 2 facet joints
3
Q
Unique characteristics of C2
A
- Axis
- Atlantoaxial joint (C1-C2)
4
Q
What is the dens of C2?
A
- Superior projection of C2
- Articulation b/t dens and anterior arch of atlas forms atlantoaxial joint
5
Q
Articulations of cervical spine
A
- Atlanto-occipital joint
- Atlantoaxial joints
- Intervertebral joints
- Zygapophyseal joints
6
Q
What kind of joint is the atlanto-occcipital joint?
A
Condylar synovial joint
7
Q
Motion of the atlanto-occipital joint
A
Flexion/extension (nodding yes)
8
Q
What kind of joint is the atlantoaxial joint?
A
Plane synovial joint
9
Q
Motion of the atlantoaxial joint
A
- Flexion
- Extension
- Lateral flexion
- Rotation
- Skull rotation on spinal column
10
Q
What forms the intervertebral joints?
A
Superior inferior surfaces of vertebral bodies and the intervertebral discs
11
Q
What forms the zygapophyseal joints?
A
R/L superior articular facets of an inferior vertebra on the R/L inferior articular facets of the adjacent superior vertebra
12
Q
Osteokinematic motions of the
A
