Flashcards in Atlanto-occipital joint Deck (9):
What is the classification of the atlanto-occipital joint?
synovial (diarthrosis) ellipsoidal
What other joint space does the atlanto-occipital joint communicate with?
the posterior bursa of the median atlanto-axial joint
What is the median thickening of the anterior atlanto-occipital ligament called?
the anterior longitudinal ligament
Ossification of the free margin of the posterior atlanto-occipital ligament results in which atypical bone classification?
What other name may be used to identify a ponticulus posticus?
**What amount of flexion - extension is accommodated by the atlanto-occipital joint?
about twenty-five degrees
**What amount of axial rotation is accommodated by the atlanto-occipital joint?
about three to eight degrees one side axial rotation
**What amount of lateral bending is accommodated by the atlanto-occipital joint?
about five degrees