Small intestine anatomy - Definition

March 2017


Definition

The intestine is a part of the digestive system consisting of two anatomically distinct parts: the small intestine and the large intestine or colon. The small intestine is a kind of folded tube which is several meters long and follows the stomach and extends through the colon. The small intestine is comprised of three segments: the duodenum at its initial portion is a long, stationary structure of about 10 inches which has several narrow connections with the pancreas, the jejunum follows it, then the ileum: both of these structures are an average of six yards long. The small intestine functions continue to digest food and absorb nutrients from the degradation process, which is favored by its length and its mucus membrane lined with folds. The nutrients then pass into the bloodstream and may be delivered to various organs.

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Published by Jeff.
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