lateral and one median atlantoaxial is the type of joint that is the atlanto occipital.
lateral and one median atlantoaxial is the type of joint that is the atlanto occipital.
what type of joint is the atlanto occipital?
lateral and one median atlantoaxial
atlanto-occipital joint









































the atlanto-occipital joint (articulation between the atlas and the occipital bone) consists of a pair of condyloid joints. the atlanto-occipital joint is a synovial joint.









































section::::ligaments.









































the ligaments connecting the bones are:









































bullet::::- two articular capsules









































bullet::::- posterior atlanto-occipital membrane









































bullet::::- anterior atlanto-occipital membrane









































section::::motions.









































the movements permitted in this joint are:









































bullet::::- (a) flexion and extension around the mediolateral axis, which give rise to the ordinary forward and backward nodding of the head.









































bullet::::- (b) slight lateral motion, lateroflexion, to one or other side around the anteroposterior axis.
atlanto-occipital joint
atlanto-occipital dislocation









































atlanto-occipital dislocation, orthopedic decapitation, or internal decapitation describes ligamentous separation of the spinal column from the skull base. it is possible for a human to survive such an injury; however, only 30% of cases do not result in immediate death. it should not be confused with atlanto-axial dislocation, which describes ligamentous separation between the first and second cervical vertebra.









































section::::mechanism.
atlanto-occipital dislocation