Gastroesophageal reflux - series

Normal anatomy


Normal anatomy

The esophagus is a narrow, muscular tube that carries food from the mouth to the stomach. A muscular ring (sphincter) at the junction of the esophagus and the stomach prevents reflux (backflow) of food and acid from the stomach into the esophagus.



Review Date: 12/20/2010
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)

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