How many cervical vertebrae are present in the human spine?

The human spine contains seven cervical vertebrae, designated as C1 through C7. This segment of the vertebral column is located in the neck region and plays a critical role in supporting the head, facilitating movement, and providing protection for the spinal cord as it passes through the vertebral foramen. Each cervical vertebra has unique characteristics, such as the presence of foramina in the transverse processes for the passage of vertebral arteries, which is essential for the blood supply to the brain.

Understanding that there are seven cervical vertebrae is crucial for various medical and therapeutic settings, as anatomical knowledge influences assessment and treatment approaches. The recognition of the cervical spine structure helps guide physical therapy interventions, injury assessments, and rehabilitation strategies, especially considering the neck's vulnerability to injury and its importance in overall mobility and function.