Rectum: Facts, Function & Health Information

The rectum is the final part of the large intestine, connecting the sigmoid colon to the anus. It is about 15-20 cm (6-8 inches) long and has a diameter of about 2.5 cm (1 inch). The rectum stores stool until it is passed out through the anus during a bowel movement.

Here are some additional facts about the rectum:

* The rectum is lined with mucous membranes, which help to protect it from damage.

* The rectum contains several sphincter muscles, which help to control the passage of stool.

* The rectum is innervated by the pudendal nerve.

* The rectum is susceptible to a variety of conditions, including hemorrhoids, anal fissures, and rectal prolapse.

* The rectum is an important part of the digestive system, and plays a vital role in the elimination of waste products.