URL of this page: //medlineplus.gov/ency/presentations/100143.htm

Achalasia - series

Normal anatomy

Normal anatomy

Overview

The esophagus carries food from the mouth to the stomach. The lower esophageal sphincter is a muscular ring at the junction of the esophagus and the stomach. The lower esophageal sphincter relaxes when food from the esophagus enters the stomach.

Update Date 10/27/2015

Related MedlinePlus Health Topics