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The **first cervical (C1) vertebra**, also known as the **atlas**, supports the skull at the top of the vertebral column. Its name references Atlas, the figure in Greek mythology who held up the heavens. Unlike other vertebrae, the C1 vertebra lacks a body and spinous process; instead, it has a ring-like structure made up of an anterior and a posterior arch. The transverse processes of the atlas are longer and extend more laterally than those of any other cervical vertebrae. The superior articular processes are deeply curved and face upward to articulate with the occipital condyles at the base of the skull. The inferior articular processes are flat and face downward to connect with the superior articular processes of the C2 vertebra. *LICENSES AND ATTRIBUTIONS CC licensed content, Shared previously, The Vertebral Column, Authored by: OpenStax College. License: CC BY: Attribution. License Terms: Download for free at https://cnx.org/contents/4CMef3D9@4/The-Vertebral-Column*
