## Encyclopedia > Sigmoid colon

Article Content

# Sigmoid colon

The sigmoid colon is the part of the large intestine after the descending colon[?] and before the rectum. The name sigmoid means S-shaped. The walls of the sigmoid colon are muscular, and contract to increase the pressure inside the colon, causing the stool to move into the rectum.

Due to the intermittent high pressure within it, the sigmoid colon can develop pockets called diverticuli in its walls. The presence of diverticuli, whether harmful or not, is called diverticulosis. An infection of the diverticuli is called diverticulitis.
Common diagnostic technique used in examination of sigmoid colon is called sigmoidoscopy[?].

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia
 Search over one million articles, find something about almost anything!

Featured Article
 Quadratic formula ... b/(2a) from both sides, we get $x=\frac{-b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.$ Generalizations The ...