Which vertebrae are located at the back wall of the pelvis?

The sacral vertebrae are indeed located at the back wall of the pelvis. The sacrum consists of five fused vertebrae that form a triangular-shaped bone between the two hip bones, providing stability and support to the pelvis. This area serves as an important attachment point for various muscles and ligaments, which are essential for movements involving the hips and lower body.

Understanding the structure of the sacrum is crucial for medical professionals, especially combat medics, as it plays a significant role in load-bearing during activities and is involved in various postural functions. This anatomical knowledge helps in assessing injuries and understanding the biomechanics of the pelvis, which is vital for providing effective medical care in the field.