APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The C2 is known as axis. It has tooth-like spinous projections called the odontoid process. It articulates with the anterior arch of the C1 or atlas and forms a joint called the pivot joint. This joint allows the head to rotate.

Detailed explanation-2: -The odontoid process, or dens, is a superior projecting bony element from the second cervical vertebrae (C2, or the axis).

Detailed explanation-3: -C2 is called the Axis. It is circular in shape with a blunt tooth-like structure (called the Odontoid Process or dens) that projects upward into the Atlas.

Detailed explanation-4: -The dens axis (literally ‘tooth of the axis’), also called the odontoid process or the peg, is the separated body of the atlas that fused with the body of the axis during early life. It exhibits a small constriction called the neck, on the place where it fuses with the body of the axis.

Detailed explanation-5: -The dens, also called the odontoid process or the peg, is the most pronounced projecting feature of the axis. The dens exhibits a slight constriction where it joins the main body of the vertebra.