Glossary Term:


muscularis propria


<b>mus</b>-kyu-<b>LAIR</b>-is <b>pro</b>-pree-uh


the muscle layer that covers most parts of the intestine (digestive tube). This layer is furthest away from the center of the tube. Moving outward from the opening, the muscularis propria is beneath the submucosa. Beyond the submucosa is a thin layer of tissue called subserosa, which covers the colon but not the rectum. See also colon, colon wall, intestine, rectum.