Which group of vertebrae comprises the cervical region?

The cervical region of the spine is composed of seven vertebrae, specifically labeled C1 through C7. This grouping is significant because it forms the uppermost part of the vertebral column, supporting the head and allowing for a range of motion in the neck. Each cervical vertebra has unique features that distinguish it from the vertebrae found in other regions of the spine, such as a smaller body compared to thoracic or lumbar vertebrae and transverse foramina that allow for the passage of blood vessels to the brain. The correct number of cervical vertebrae is essential knowledge for understanding spine anatomy, as it relates to both movement and the potential for injury.

Groups like thoracic vertebrae (which number 12) or lumbar vertebrae (typically numbering 5) refer to different sections of the spine, emphasizing why the number of cervical vertebrae is specifically identified as seven.