Spinecare Topics
Sacrum and Coccyx
Below the five low back (lumbar) vertebrae there is a large
segment comprised of five fused vertebrae called the sacrum. The sacrum forms
the back part of the pelvis. It connects the right and left pelvic bones
(ilium) to form the sacroiliac joints. The tailbone or coccyx is comprised of
3-5 small vertebrae which connect to the lower end of the sacrum..