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rectum |
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rectum: see intestine intestine, muscular hoselike portion of the gastrointestinal tract extending from the lower end of the stomach (pylorus) to the anal opening. In humans this fairly narrow (about 1 in./2.
..... Click the link for more information. . rectumEnd segment of the large intestine (see digestion) in which feces accumulate just prior to discharge. It is 5–6 in. (13–15 cm) long and lined with mucous membrane. One set of muscles separates it from the anal canal; another shortens it to expel feces. The rectal walls distend as feces enter, which stimulates the urge for defecation. rectum the lower part of the alimentary canal, between the sigmoid flexure of the colon and the anus rectum [′rek·təm] (anatomy) The portion of the large intestine between the sigmoid flexure and the anus. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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