Which part of the spine includes the atlas and axis?
cervical spine
The cervical spine is further divided into two parts; the upper cervical region (C1 and C2), and the lower cervical region (C3 through C7). C1 is termed the Atlas and C2 the Axis. The Occiput (CO), also known as the Occipital Bone, is a flat bone that forms the back of the head.
What ligaments are in the neck?
Although the cervical vertebrae are the smallest, the neck has the greatest range of motion. These four ligaments run between the Occiput and the Atlas: Anterior Occipitoatlantal Ligament….Primary Spinal Ligaments Include:
| Ligament | Spinal Region | Limits… |
|---|---|---|
| Interspinous | Lumbar | Flexion |
| Intertransverse | Lumbar | Lateral flexion |
What is the difference between atlas and axis vertebrae?
The atlas is the first cervical (neck) vertebra which is just under the head; it is named for Atlas, the Greek god who supported the world on his shoulders. The axis is the second cervical vertebra; it has what is called the odontoid process about which the atlas rotates. It allows the head turn from side to side.
Which part of the spine includes the atlas and axis quizlet?
vertebral canal = through which the spinal cord passes. foramen = the hole in the middle of each spinal bone. Includes the atlas and the axis.
What is atlas vertebrae?
atlas: the first cervical vertebra (C1), lying directly under the skull, through which the head articulates with the neck. The main connection to the vertebra below is a pivot around the odontoid process that is an upward projection of the body of the second cervical vertebra.
What is significant about atlas and axis vertebra?
The atlas is the topmost vertebra and, with the axis (the vertebra below it), forms the joint connecting the skull and spine. The atlas and axis are specialized to allow a greater range of motion than normal vertebrae. They are responsible for the nodding and rotation movements of the head.
What is the function of the atlas and axis vertebrae?
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. Together, they support the skull, facilitate neck movement, and protect the spinal cord.
Which vertebra is called the atlas?
The first cervical vertebra, atlas, is unique in the sense that it possesses neither a body nor spinous process. It consists of an anterior and posterior arch extending between two lateral masses, forming a closed triangular ‘ring’ that accommodates the brainstem.