How many vertebrae make up the cervical portion of the spinal column?

The cervical portion of the spinal column is comprised of seven vertebrae, which are designated as C1 through C7. This region is located in the neck and is essential for supporting the head and allowing a wide range of motion, including rotation, flexion, and extension. The first two cervical vertebrae, known as the atlas and axis, have unique shapes and functions that enable the head to pivot and nod. This grouping of seven vertebrae is critical not only for mobility but also for protecting the spinal cord as it passes through the vertebral foramen. The design of the cervical spine allows for both strength and flexibility, which is vital for daily activities as well as for more complex movements in fields such as hairdressing.