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.

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 …

2022年12月7日 · The axis is 1 of the only 2 vertebrae with a unique name and purpose. It is the 2nd bone out of the 7 in the uppermost section of the spinal column, the cervical vertebra. It is also referred to as the C2 vertebra or epistropheus (rarely).

Position of human cervical vertebrae (shown in red). It consists of 7 bones, from top to bottom, C1, C2, C3, C4, C5, C6, and C7. In tetrapods, cervical vertebrae (sg.: vertebra) are the vertebrae of the neck, immediately below the skull.

2023年10月30日 · The axis is the second vertebra of the vertebral column, located in the superior portion of the cervical region of the spine. It articulates superiorly with the atlas, and inferiorly with the third cervical vertebra. The axis can be divided into anterior and posterior components.

2024年9月10日 · The axis is the second cervical vertebra, commonly called C2. It is an atypical cervical vertebra with unique features and important relations that make it easily recognisable.

2023年10月24日 · The C2 vertebra, aka the axis, is the primary weight-bearing bone of the upper cervical region(see Image. Second Cervical Vertebra). Second Cervical Vertebra). C2's hallmark feature is the odontoid process, aka dens, which is the bony projection extending cranially from its …

In anatomy, the axis (from Latin axis, "axle") is the second cervical vertebra (C2) of the spine, immediately inferior to the atlas, upon which the head rests. The spinal cord passes through the axis. The defining feature of the axis is its strong bony protrusion known as the dens, which rises from the superior aspect of the bone.

The Axis (C2 vertebra) also known as epistropheus forms the pivot upon which the first cervical vertebra (the Atlas), which carries the head, rotates. [1] . The axis is composed of a vertebral body, heavy pedicles, laminae, and transverse processes, which serve as …