sacral promontory

The sacrum and coccyx form the terminal segments of the vertebral column, playing crucial roles in weight transmission and pelvic stability. These fused vertebral elements provide attachment points for important ligaments and muscles while protecting the terminal portions of the spinal cord and nerve roots. Their anatomical features are essential knowledge for healthcare providers dealing with lower back pain, obstetrics, and pelvic disorders.

The female pelvis represents a remarkable anatomical structure that combines strength, stability, and adaptability essential for childbirth and various bodily functions. This comprehensive illustration depicts the anterior view of the female pelvic bone, showcasing its unique anatomical features that distinguish it from the male pelvis, including a wider pelvic inlet, broader sacral angle, and more circular pelvic cavity designed specifically to facilitate childbirth.

The coccyx, commonly known as the tailbone, represents the final segment of the vertebral column and serves as a crucial attachment point for various pelvic muscles and ligaments. This detailed anterior view illustration demonstrates the complex anatomy of the coccyx and its relationship with surrounding structures, highlighting its importance in pelvic stability and function. The coccyx typically consists of 3-5 fused vertebral segments and plays a vital role in weight-bearing during sitting.