Ox
- Occipito Atlantal articulations Is a ginglymus joint between the condyles of the occipital bone and the anterior articular cavities of the atlas.
Ligaments
- Capsular
- Two lateral occipito-atlantal ligaments attached to the paramastoid processes in front and the anterior margins of the wings of atlas behind.
- The dorsal occipito-atlantal ligament consists of two fasciculi, which intercross and extends between the dorsal margin of the foramen magnum and wing of atlas
- The ventral occipito-atlantal ligament extends from the ventral margin of the foramen magnum to the wing of atlas. Synovial membranes are two in number, one for each condyle.
Motion
Extension, flexion and slight lateral oblique motion
Horse
- No difference.
Dog
- The synovial membrane communicates with that of the atlanto-axial joint.