lower esophageal sphincter

lower esophageal sphincter definition - medical

lower esophageal sphincter

noun
A ring of smooth muscle fibers at the junction of the esophagus and stomach. Also called cardiac sphincter.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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