2019年1月20日 · The main difference between atlas and axis vertebrae is that atlas is the first cervical vertebra, which supports the skull whereas axis is the second cervical vertebra, which forms the pivot upon the atlas.

2023年10月26日 · Atlas vertebrae and axis vertebrae are the first and second cervical vertebrae, respectively, crucial for head movement. The atlas vertebrae support the skull and enable nodding movements. Axis vertebrae, with their unique odontoid …

The Atlas vertebrae and Axis vertebrae are two distinct bones that make up the uppermost part of the spine, known as the cervical spine. The Atlas vertebra, also known as C1, is the first cervical vertebra and is responsible for supporting the weight of the skull.

2012年12月6日 · The atlas and axis vertebrae are the two most superior bones in the vertebral column, and they are part of the seven cervical vertebrae. The atlas is the top-most bone, sitting just below the skull; it is followed by the axis.

2013年7月23日 · The atlas bone is said to be the most superior or first bone of the cervical vertebrae of the spine. The word atlas is derived from Greek mythology: Atlas was the god who held the celestial sphere. The axis vertebra is the bone which joins the spine and skull. It works in tandem with the atlas bone.

2024年9月5日 · Atlas. The atlas is the first cervical vertebra and articulates with the occiput of the head and the axis (C2). It differs from the other cervical vertebrae in that it has no vertebral body and no spinous process. Instead, the atlas has lateral masses which are connected by an anterior and posterior arch. Each lateral mass contains a superior ...

2023年12月3日 · The atlas lacks a vertebral body and has a ring-like structure, while the axis has a well-defined vertebral body. The atlas forms a joint with the skull, allowing flexion and extension of the neck. The axis features the odontoid process, enabling rotational movements of the head.

2024年4月25日 · The atlas (C1) supports the skull and enables nodding movements, while the axis (C2) allows for the rotation of the head. The atlas, or the first cervical vertebra (C1), is unique because it lacks a body and a spinous process, which distinguishes it from other vertebrae.

2023年10月24日 · The 2 most cephalad vertebrae, the atlas (C1) and the axis (C2), form the craniocervical junction (CCJ) together with the occiput. The 5 cervical vertebrae caudad, C3 to C7, comprise the subaxial spine and are referred to by number (see Image. Cervical Vertebrae). The cervical spine supports the weight of the cranium and head and neck motion.

Here are the key differences between the atlas and axis vertebrae: Position: The atlas (C1) is the first cervical vertebra and is present just under the head, while the axis (C2) is the second cervical vertebra. Function: The atlas vertebra supports the skull and holds it upright, not allowing much movement. The axis vertebra forms a pivot upon ...