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Picture Your Digestive System

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Updated July 26, 2014

Written or reviewed by a board-certified physician. See About.com's Medical Review Board.

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Your Small Intestine
Picture Your Digestive System
Photo@A.D.A.M.

The digestive process continues as chyme from the stomach enters the small intestine. The main job of the small intestine is to absorb essential nutrients into the bloodstream. The small intestine is made up of three parts:

  • Duodenum
  • Jejunum
  • Ileum

The small intestine is aided in its work by the liver, gallbladder, and pancreas. In the duodenum, bile from the gallbladder and pancreatic secretions are added to the chyme. The jejunum and ileum are responsible for the breakdown and absorption of most nutrients, including fats, starches, proteins, vitamins and minerals.

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