key term - Atlas

Definition

The atlas is the first cervical vertebra (C1) of the vertebral column, characterized by its lack of a body and a spinous process, which supports the globe of the head. It articulates with the occipital condyles of the skull, allowing for nodding and rotation movements of the head.

Related terms

Axis:

The second cervical vertebra (C2), distinguished by its odontoid process (dens) around which the atlas rotates.

Occipital condyles: Rounded projections on either side of the foramen magnum on the occipital bone of the skull, which articulate with the atlas.

Cervical vertebrae: The seven vertebrae forming the upper part of the vertebral column, characterized by small bodies and large vertebral foramina