How many regions is the spinal column divided into?

The spinal column is divided into five distinct regions, which is why the answer is correct. These regions are the cervical, thoracic, lumbar, sacral, and coccygeal regions. Each region has unique characteristics and serves different functions in the body.

The cervical region consists of seven vertebrae (C1-C7) and supports the head while providing mobility and strength. The thoracic region has twelve vertebrae (T1-T12) that articulate with the ribs to form the rib cage, providing protection for vital organs. The lumbar region includes five vertebrae (L1-L5) that bear the most weight and provide support for the lower back. The sacral region is made up of five fused vertebrae that form the sacrum, which connects the spine to the pelvis. Finally, the coccygeal region contains the coccyx, or tailbone, typically comprised of four fused vertebrae.

Understanding these divisions is crucial for anyone working in orthopedic technology, as it helps in diagnosing and treating spinal conditions, understanding spinal anatomy, and performing interventions that may involve various sections of the spine.