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URL of this page: //medlineplus.gov/ency/imagepages/9305.htm
Upper gastrointestinal system
Overview
The upper gastrointestinal organs include the mouth, esophagus and stomach.
Review Date 5/15/2026
Updated by: Fred K. Berger, MD, DLFAPA, board-certified in psychiatry, Scripps Memorial Hospital, La Jolla, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.