What is the name of the C2 vertebrae?

The C2 vertebra is known as the Axis. It plays a crucial role in the rotation of the head and neck. The unique structure of the Axis includes a prominent bony projection called the odontoid process or dens, which extends upward and acts as a pivot point for the Atlas (C1 vertebra). This anatomical arrangement allows for a significant range of motion, particularly the shaking of the head from side to side. The Axis is essential for maintaining stability while allowing for the flexibility necessary for various movements of the cervical spine. Understanding the function and significance of the Axis is fundamental in the study of vertebral anatomy and movements of the cervical region.