[I.  The atlantal ring of the vertebral artery.  II.  Transverse dehiscence of the axis].
D001368:Axis, Cervical Vertebra / Q000002:abnormalities*; D001270:Cervical Atlas / Q000002:abnormalities*; D006801:Humans; D019736:Prostheses and Implants; D012098:Reproduction; D014711:Vertebral Artery
ATLAS AND AXIS/abnormalities
I.  L'anneau atloïdien de la vertébrale.  II.  La déhiscence transversaire de l'axis.