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Upper gastrointestinal system

Upper gastrointestinal system

Overview

The upper gastrointestinal organs include the mouth, esophagus and stomach.

Review Date 10/22/2018

Updated by: Michael M. Phillips, MD, Clinical Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.