Fig. 534: Atlantooccipital and Atlantoaxial Joints(Posterior View)Arch(es), of axis|軸椎の椎弓 Artery (arteries), vertebral, groove for|椎骨動脈溝 Atlas|環椎 Atlas, process of, transverse|横突起 Axis|軸椎 Bone(s), occipital|後頭骨 Joint(s), atlantoaxial|環軸関節 Joint(s), atlanto-occipital|環椎後頭関節 Membrane, atlanto-occipital,posterior|後環椎後頭膜 Muscle(s), serratus posterior superior|上後鋸筋 Sulcus (Sulci), for vertebral artery|椎骨動脈が通る溝 Vertebra(e), cervical|頚椎