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Duodenum

 

The duodenum is the first part of the small intestine. It is located between the stomach and the middle part of the small intestine, or jejunum.

After foods mix with stomach acid, they move into the duodenum, where they mix with bile from the gallbladder and digestive juices from the pancreas.

The absorption of vitamins, minerals, and other nutrients begins in the duodenum.

 

References

Drake RL, Vogl W, Mitchell AWM. Abdomen. In: Drake RL, Vogl W, Mitchell AWM, Tibbitts RM, Richardson PE, eds. Gray's Atlas of Anatomy. 2nd ed. Philadelphia, PA: Elsevier Churchill Livingstone; 2015:chap 4.

Harris JW, Evers BM. Small intestine. In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 20th ed. Philadelphia, PA: Elsevier; 2017:chap 49.

 
  • Digestive system

    Digestive system - illustration

    The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.

    Digestive system

    illustration

    • Digestive system

      Digestive system - illustration

      The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.

      Digestive system

      illustration

    A Closer Look

     

      Tests for Duodenum

       

         

        Review Date: 12/10/2016

        Reviewed By: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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