Vertebral Column Flashcards
atlantooccipital joint action
head extension and flexion
what kind of joint is atlantoocciptal?
synovial
atlantoaxial joint action
head lateral rotation
what kind of joint is atlantoaxial?
pivot
atlanooccipital joint is between what?
superior articular facet on axis and occipital bone
atlantoaxial joint is between what?
median = dens and anterior arch of atlas
lateral = superior articular facet of axis andinterior articular facet of atlas
cruciate ligament of craniovertebral joint
- superior longitudinal band (above atlas)
- transverse ligament of atlas/band
- inferior longitudinal band (on axis)
alar ligament
connects transversely dens and occipital bone
what does whiplash break?
dens
T1 vertebra is missing what facet?
superior costal facet
T12 vertebra is missing what facet?
inferior costal facet
no rib should be on T1 except for ______ rib
cervical
which thoracic vertebrae do not have transverse costal facets?
thoracic vertebrae connected to floating ribs (T11 and T12)
why is the sexual dimorphism of the tailbone clinically relevant?
women are more likely to break their tail bone because its more superficial because of the angle of the coccyx in the female is closer to the surface than the male’s
lordosis
bump to the front