Clinical anatomy is concerned with the anatomic relationships between various structures of the living human organism. These relationships in the pelvis and their physiologic alterations along with the degree of independent function of each organ system are the concern of the gynecologist. Pelvic anatomy is complex and requires careful study and cadaveric dissection. A three-dimensional understanding of the interplay between bones, ligaments, pelvic organs, and muscles helps the gynecologist and pelvic surgeon identify and treat disorders of the pelvic floor. In this chapter, the anatomy of the pelvic structures will be described from the clinician's point of view. The pelvis is a basin-shaped structure that supports the spinal column and protects the abdominal and pelvic organs.