The pelvic bones include the hip bones, sacrum, and coccyx. The hip bones are composed of three sets of bones that fuse together as we grow older. Each set is nearly symmetrical across the body ...

A lumbosacral spine X-ray, or lumbar spine X-ray, is an imaging test that helps your doctor view the anatomy ... lumbar spine. The coccyx, or tailbone, is located below the sacrum.