The anus is the name for the muscular area at the very end of the large bowel. It is the muscle which opens and closes to control bowel movements, and is where the bowel opens to the outside of the

Helping people live with cancer
The anus is the name for the muscular area at the very end of the large bowel. It is the muscle which opens and closes to control bowel movements, and is where the bowel opens to the outside of the