Editing Large intestine (section)

====Sigmoid colon====
{{Main|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 (see [[wiktionary:sigmoid|sigmoid]]; cf. [[sigmoid sinus]]). The walls of the sigmoid colon are muscular and contract to increase the pressure inside the colon, causing the [[feces|stool]] to move into the rectum.

The sigmoid colon is supplied with blood from several branches (usually between 2 and 6) of the [[sigmoid arteries]], a branch of the IMA. The IMA terminates as the [[superior rectal artery]].

[[Sigmoidoscopy]] is a common diagnostic technique used to examine the sigmoid colon.