The C1 and C2 vertebrae are the first two vertebrae of the spine. Trauma to this level not only injures these two vertebrae, but may also damage the C2 spinal nerve, the vertebral artery, and/or the spinal cord.

The C1 and C2 vertebrae are the first two segments in the cervical spine. These levels of the spinal column are especially important due to their location and functions. A C1 through C2 vertebrae injury is considered to be the most severe of all spinal cord injuries as it can lead to full paralysis—but is most often fatal.

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.

2020年12月2日 · What is a C2 Vertebra? The C2 vertebra is the axis which the C1 vertebra pivots around and lets us move our skulls from side to side in a horizontal motion. Like the C1 vertebra, a C2 vertebra has a greater degree of motion than …

By convention, the cervical vertebrae are numbered, with the first one (C1) closest to the skull and higher numbered vertebrae (C2–C7) proceeding away from the skull and down the spine. The general characteristics of the third through sixth cervical vertebrae are described here.

C1 and C2 are considered atypical vertebrae because they have some distinguishing features compared to the rest of the cervical spine. C1 Vertebra (the atlas). The top vertebra, called the atlas, is the only cervical vertebra without a vertebral body. Instead, it is shaped more like a ring.

2022年5月24日 · 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. Cervical vertebrae are found in the neck region, starting from the base of the skull and extending to the thoracic cage of the trunk.

2023年10月24日 · The cervical spine comprises 7 vertebrae (C1 to C7) and is divided into 2 major segments. The 2 most cephalad vertebrae, the atlas (C1) and the axis (C2), form the craniocervical junction (CCJ) together with the occiput.

C1 and C2 form a unique set of articulations that provide a great degree of mobility for the skull. C1 serves as a ring or washer that the skull rests upon and articulates in a pivot joint with the dens or odontoid process of C2.

2023年8月28日 · Atlas (C1) and axis (C2) are the first two cervical vertebrae and are named separately due to their distinctive anatomical features. They reside in the spine's craniovertebral junction, where the base of the skull meets the spinal column.