2022年1月18日 · Your cervical spine — the neck area of your spine — consists of seven stacked bones called vertebrae. The first two vertebrae of your cervical spine are unique in shape and function. Your first vertebra (C1), also called the atlas, is a ring-shaped bone that begins at the base of your skull.

In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine and is located in the neck. The bone is named for Atlas of Greek mythology, just as Atlas bore the weight of the heavens, the first cervical vertebra supports the head. [1]

2025年2月8日 · The C1 vertebra, known as the atlas, is the superior-most vertebra in the spinal column. It plays vital roles in the support of the skull, spinal cord, and vertebral arteries and provides attachment points for several muscles of the neck.

In humans, cervical vertebrae are the smallest of the true vertebrae and can be readily distinguished from those of the thoracic or lumbar regions by the presence of a foramen (hole) in each transverse process, through which the vertebral artery, vertebral veins, and inferior cervical ganglion pass. The remainder of this article focuses upon ...

2023年10月24日 · First Cervical Vertebra). Due to its unique role, C1 has features not shared with the rest of the spine. First, the vertebral body is absent, allowing the ring-shaped C1 to accommodate the spinal cord as it exits the foramen magnum. Second, C1's concave, medially oriented articular facets make it suitable for receiving the occipital condyles to ...

The C1 and C2 vertebrae are the first two vertebrae at the top of the cervical spine. Together they form the atlantoaxial joint, which is a pivot joint. The C1 sits atop and rotates around C2 below. More of the head’s rotational range of motion comes from C1-C2 than any other cervical joint. 1 Mead LB, Millhouse PW, Krystal J, Vaccaro AR.

2022年12月1日 · The atlas is the first of these 7 cervical vertebrae and is also referred to as the 1st cervical vertebrae or C1. Its name derives from the Greek God Atlas, famous in mythologies for being condemned to bear the weight of the Earth on his shoulders for eternity.

2022年5月24日 · The cervical spine is the first part of the spinal column, consisting of 7 cervical vertebrae, C1-C7. These vertebrae are ring-like bony structures supporting the weight of the head. The first two bones, C1 and C2, are highly specialized, known as the atlas and axis.

These two segments work together to produce rotation, lateral flexion, flexion and extension of the head and neck. [1] [2] It is made up of 7 vertebrae. The first 2, C1 and C2, are highly specialized and are given unique names: atlas and axis, respectively.

2023年12月6日 · The atlas (plural: atlases) is the first cervical vertebra, commonly called C1. It is an atypical cervical vertebra with unique features. It articulates with the dens of the axis and the occiput, respectively allowing rotation of the head, and flexion, extension and lateral flexion of …