Week 3

Question 1

function of intervertebral discs

Answer 1

bind vertebrae together and absorb compression
protection, support weight, facilitate and limit movement, muscle attachment

Question 2

what is the pars interarticularis

Answer 2

common site for stress fracture located between the superior and inferior articular processes, posterior to the transverse process

Question 3

atlanto occipital joint

Answer 3

skull - C1
synovial joint. C1 has no spinous process. no IV disc or vertebral body. allows flexion

Question 4

atlanto axial joint

Answer 4

C1-C2
3 joints - L, R, medium
synovial. no IV disc
allows rotation

Question 5

uncovertebral joints

Answer 5

located on C3-C7
lateral aspect (uncus) of body of vertebrae
prevents excessive lateral flexion

Question 6

transverse ligament of atlas

Answer 6

C1 medial to atlanto occipital joint bilaterally
encapsulates the dens of C2 and prevents posterior translation into the spinal cord

Question 7

nuchal ligament

Answer 7

external occipital protuberance - cervical spinous processes
limits head falling forward
continuous with supraspinous ligament
thick fibroelastic tissue

Question 8

supraspinous ligament

Answer 8

C7 spinous process to sacrum
limits hyperflexion

Question 9

interspinous ligament

Answer 9

spinous process of superior vertebrae to spinous process of inferior vertebrae
limits flexion and anterior translation

Question 10

anterior longitudinal ligament

Answer 10

occipital bone and anterior body of C1 vertebrae - anterior sacrum
limits hyperextension

Question 11

posterior longitudinal ligament

Answer 11

inside of the vertebral canal, C2 discs and vertebral body to posterior sacrum
limits hyperflexion

Question 12

ligamentum flavum

Answer 12

superior vertebrae pedicles and vertebral body to inferior vertebrae pedicles and vertebral body
limits hyperflexion
not continuous