In anatomy, the axis is the second cervical vertebra of the spine, immediately inferior to the atlas, upon which the head rests. The spinal cord passes through the axis.
Axis
Repair of a dens fracture
Axis on X-ray taken through an open mouth, teeth visible
In tetrapods, cervical vertebrae are the vertebrae of the neck, immediately below the skull. Truncal vertebrae lie caudal of cervical vertebrae. In sauropsid species, the cervical vertebrae bear cervi
Axis (anatomy)
…In anatomy, the axis (from Latin axis, "axle") is the second cervical vertebra (C2) of the spine, immediately inferior to the atlas, upon which the head rests. The spinal cord passes through the axis. The defining feature of the…
Scrollable computed tomography images of normal cervical vertebrae