Take a moment to appreciate the freedom of movement your head likely enjoys. (Really—go “a-head”!) For most people, the neck allows the head remarkable range of motion. It can swivel left and right, nod up and down, tilt side to side and “roll” around from shoulder to shoulder. Much of that motion is due to the anatomy of just the top two joints in the neck: the joint between the skull and the first bone of the spine, and the joint between the first and second bones in the spine.