UCS Flashcards
C1 lateral mass
superior concave
inferior convex
ligaments axis to occiput
PLL becomes tectorial membrane
Ligaments atlas to occiput
ALL becomes AAO membran
Lig flavum becomes PAO membrane
ligaments atlas to axis
controls ant/post movement of AA joint
transverse ligament
axis to occiput
resist flex,contralat SB and contralat rot
Alar ligament
CS muscles have increased ______ and are important for proprioception of head position on neck
density of muscle spindles
flexion of OA joint
convex occipital condyles glide post on concave atlas
Flexion aa joint
C1 moves inferiorly on C2; C2 glides forward on C3
extension oa joint
convex occipital condyles glide anteriorly on concave atlas
extension aa joint
atlas moves superiorly; C2 moves backwards on C3
rotation oa joint
opsilateral condyle glide post
rotation aa joint
ipsilateral facet moves post; contralateral facet moves ant; atlas translates to the opposite side
SB oa joint
ipsilateral condyle glides ant
UCS coupled movements
SB and rot occurs int he opposite directions
vertebral artery causes
MVA
trauma
cervical instability and fx
manipulation or sudden neck movement