Which statement about the cervical spine is true?

• A. It supports the head and protects the spinal cord
• B. It stores calcium
• C. It forms the pelvis
• D. It comprises 12 vertebrae

Answer: (A)

Think about what the neck region is for: it mainly bears the weight of the head and protects the nervous system as it continues down the spine. The cervical spine is composed of seven vertebrae and forms a protective canal (the vertebral canal) for the spinal cord and nerve roots, while also allowing a wide range of head movement. Calcium storage is a general property of bone tissue in the body, not a function unique to the cervical region. The pelvis is formed by parts of the lower spine and pelvic bones, located much lower and not part of the neck. The segment with twelve vertebrae belongs to the thoracic region, which runs along the upper back and connects to the ribs. Therefore, the statement that the cervical spine supports the head and protects the spinal cord is the true description.