The cervical spine connects the head to the thorax.  C1 (the atlas) and C2 (the axis) have special modifications for support and movements of the skull.  C3 through C7 are more typical vertebrae, but have different shapes than the rest of the spinal vertebrae so the vertebral artery and vein may pass through.

Concussions, car wrecks, and other types of injury can wreck havoc on this area of the spine.  It is vital to have strong muscles and the maximum amount of space possible for the arteries, veins, and discs.

The ELDOA for the cervical spine are exercises that create strength and space and alleviate pain.