large intestine


large intestine

noun

: the end part of the intestine that is wider and shorter than the small intestine

Full Definition of LARGE INTESTINE

:  the more terminal division of the vertebrate intestine that is wider and shorter than the small intestine, typically divided into cecum, colon, and rectum, and concerned especially with the resorption of water and the formation of feces

First Known Use of LARGE INTESTINE

1823

Rhymes with LARGE INTESTINE

large intestine

noun    (Medical Dictionary)

Medical Definition of LARGE INTESTINE

: the more terminal division of the vertebrate intestine that is wider and shorter than the small intestine, typically divided into cecum, colon, and rectum, and concerned especially with the resorption of water and the formation of feces

Illustration of LARGE INTESTINE

large intestine

noun    (Concise Encyclopedia)

End section of the intestine. It is about 5 ft (1.5 m) long, is wider than the small intestine, and has a smooth inner wall. In the first half, enzymes from the small intestine complete digestion, and bacteria produce many B vitamins and vitamin K. Over 24–30 hours, churning movements break down tough cellulose fibres and expose chyme to the colon's walls, which absorb water and electrolytes; absorption is its main function, along with storing fecal matter for expulsion. The more vigorous “mass movement” (gastrocolic reflex) occurs only two or three times a day to propel waste material toward the anal canal. Common afflictions include ulcerative colitis, diverticulosis (see diverticulum), polyps, and tumours.

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