How is the spinal column divided?

The spinal column is divided into five distinct regions: cervical, thoracic, lumbar, sacral, and coccygeal. This classification is based on both anatomical and functional characteristics of the vertebrae in each region.

The cervical region consists of seven vertebrae (C1 to C7) located in the neck area and is responsible for supporting the head and allowing a wide range of head movements. The thoracic region contains twelve vertebrae (T1 to T12) and is where the ribs attach, providing structural support to the thoracic cavity. The lumbar region, which comprises five vertebrae (L1 to L5), is located in the lower back and is adapted for bearing weight and facilitating movement. The sacral region includes five fused vertebrae, forming the sacrum at the base of the spine, which connects the spine to the pelvis. Lastly, the coccygeal region consists of four fused vertebrae that form the coccyx, or tailbone.

The other options do not accurately reflect the anatomical classification of the spinal column as it is commonly recognized in medical terminology. Understanding the five regions is crucial for both clinical practice and anatomical studies as it provides a framework for diagnosing and treating