What are the seven vertebrae that make up the uppermost region of the spine called?

The uppermost region of the spine consists of the seven vertebrae known as the cervical vertebrae. This section of the spine is crucial as it supports the head and allows for a range of movements, including rotation, flexion, and extension. The cervical vertebrae also protect the spinal cord and serve as attachment points for muscles and ligaments. They are designated as C1 through C7, with C1 known as the atlas and C2 referred to as the axis, which play a significant role in the ability to nod and rotate the head. This makes the cervical region vital for both protective and functional purposes in the human body.