Canadian Medical Guide > Anatomy > Digestive System > Gastrointestinal Tract > Intestines > Intestine, Small Terms and Definitions

Intestine, Small

Medical Definition:	The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM.
Guide Notes:	GEN; inflammation = ENTERITIS but ENTEROCOLITIS; DUODENITIS & ILEITIS are available

Intestine, Small Categories.

	Duodenum - The shortest and widest portion of the SMALL INTESTINE adjacent to the PYLORUS of the STOMACH. It is named for having the length equal to about the width of 12 fingers.
	Ileum - The distal and narrowest portion of the SMALL INTESTINE, between the JEJUNUM and the ILEOCECAL VALVE of the LARGE INTESTINE.
	Jejunum - The middle portion of the SMALL INTESTINE, between DUODENUM and ILEUM. It represents about 2/5 of the remaining portion of the small intestine below duodenum.

Intestine, Small Medical Definitions and Terms

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