Bony landmarks and ligaments of the pelvis. Anterior surface of sacrum and coccyx.

Muscles of the pelvic floor, superior view.

Lateral view of vertebral column curvature in an adult, showing cervical (red), thoracic (brown), and lumbar (yellow) vertebrae, and the sacrum and coccyx (orange).

Posterior view of the ligaments of the lumbar spine and pelvis.

Axial CT of sacroiliac joint, which is indicated by arrows.

Floor of female pelvis, superior view.

Coronal section showing the ligaments of the sacroiliac joint and coccyx.

Medial (left; showing the hip bone) and lateral (right; showing the sacrum) views of the articular surfaces of the sacroiliac joint.

Lateral view of the hip bone.

Anterior radiograph of the pelvis, with part of the lumbar spine and femur.

Bony landmarks and ligaments of the pelvis. Superior aperture and ligaments of female pelvis.

Autonomic nerves of female pelvis. A. Median section, rectum, and subperitoneal tissue reflected anteriorly. Insert image indicates orientaion of main illustration.

Sacrum, pelvic surface