| The sacrotuberous ligament is a cartilaginous attachment of the sacrum to the ischial tuberosity. |
| The coccygeus is a small muscle of the pelvic diaphragm, which connects the ischial spine to the sacrum and the coccyx. |
| These sit in between your hip bones and the sacrum bone in your lower back. |
| The anterior sacroiliac ligament connects the sacrum to the ilium in the same manner. |
| Below the lumbar spine is the sacrum, which is actually five vertebrae fused into one bone. |
| A small surgical opening is made over the sacrum and a lead is placed near the sacral nerve that influences bladder control. |
