It is located below the sacrum, that is, at the end of the spine, the last piece of the spine, the last piece along the spine. Its proximal end is connected with sacrum through fibrocartilage. Usually, the range of motion of this joint is larger for women than for men, especially during pregnancy.

The concave part of the posterior upper part of coccyx connected with sacrum is called sacrococcygeal space, and there is a coccyx angle on both sides of the posterior articular surface, which is equivalent to the pedicle and superior articular process of coccyx.

Extended data

I. Development Process and Functions

Bone fusion can occur in sacrococcygeal joints. It is a degenerated bone in the human body, and it has little effect after resection. When sitting, the coccyx bears the weight of the ischial tubercle instead of exerting force. The coccyx can heal with the sacrum to form bones in later years, which is more common in women. The coccyx can change the shape of pelvic outlet. If the coccyx can't move, it may break during childbirth.

Second, matters needing attention

The coccyx itself has coccygeal ligament, gluteus maximus, coccygeal muscle, anal sphincter and levator ani attached to it. In men, the coccyx is thicker than the ischium, so it has better protection when it is hit. On the contrary, in women, the coccyx is relatively easy to bruise when it falls down.

Baidu encyclopedia-coccyx

Baidu encyclopedia-coccyx