Arteriovenous Malformation of the Intestine Anatomy
The intestine absorbs nutrients from food and liquids. The intestine is about 22 feet long in an adult. It includes the large intestine (colon) and the small intestine.
The large intestine is also known as the colon. It is the last portion of the intestine. The colon has several parts, including:
- Ascending colon: the first section after the small intestine, located on the right side
- Transverse colon: sits horizontally across the upper abdomen
- Descending colon: located on the left side of the abdomen
- Sigmoid: a short, S-shaped section above the rectum
- Rectum: the lowest internal part of the colon
- Gordon FH, Watkinson A, Hodgson H. Vascular malformations of the gastrointestinal tract. Best Pract Res Clin Gastroenterol. 2001 Feb;15(1):41-58. 
- Hodgson H. Hormonal therapy for gastrointestinal angiodysplasia. Lancet. 2002 May 11;359(9318):1630-1. 
- Lingenfelser T, Ell C. Gastrointestinal bleeding in the elderly. Best Pract Res Clin Gastroenterol. 2001 Dec;15(6):963-82.