What is sacral and thoracic?

The sacral region refers to the lower part of the spine, consisting of five fused vertebrae that form the sacrum, connecting the spine to the pelvis. It plays a crucial role in supporting the weight of the upper body and facilitating movement. The thoracic region, on the other hand, is located in the upper and mid-back, consisting of twelve vertebrae (T1-T12) that articulate with the ribs, providing stability and protection for the thoracic organs, such as the heart and lungs. Together, these regions contribute to the overall structure and function of the vertebral column.