part of part of connects connects skeletal joint vertebral bone 1 vertebral bone 2 atlanto-axial joint http://upload.wikimedia.org/wikipedia/commons/d/d4/Gray304.png The Atlanto-axial joint is of a complicated nature, comprising no fewer than four distinct joints. There is a pivot articulation between the odontoid process of the axis and the ring formed by the anterior arch and the transverse ligament of the atlas. UBERON:0003694 lateral atlanto-axial joint NCIT:C32157 articulatio atlantoepistrophica Wikipedia:Atlanto-axial_joint articulatio atlantoaxialis SCTID:361832004 MESH:D001268 UMLS:C0004168 FMA:25524 GAID:250 atlantoaxial median atlanto-axial joint atlantoaxial joint atlanto axial joint postcranial axial skeletal system