NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology Human Physiology-Digestion and Absorption Revision (Page 6 of 23)

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Part of GIT – Small Intestine

Small intestine; is so named because it has small diameter. Its length is correlated with the height of the individual and not with the weight. It is longest part of GIT and has three parts,

  1. Duodenum (Latin twelve); it isso called as it is as long as the breadth of 12 fingers which makes about 25 cm. It is the shortest, widest first partof small intestine. It looks like English alphabet C in shape, in the curvature of C is present the head of pancreas. In this part the hepatopancr

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Part of GIT – Large Intestine

Large intestine;

its diameter is more than that of the small intestine. It arches around the coils of the small intestine and is more fixed than small intestine. It has following parts

  • Caecum; it is a pouch like structure about 6 cm in size in which lower end of ileum opens. The ileocaecal junction is guarded by a valve, ileocaecal valve which allows on flow of intestinal contents but back flow is prevented.

    Caecum is well developed in herbivorous mammals like rabbits, horses etc.

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