lower esophageal sphincter
| Dictionary: lower esophageal sphincter |
n.
A ring of smooth muscle fibers at the junction of the esophagus and stomach. Also called cardiac sphincter, gastroesophageal sphincter.
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 | LES |
| gastric reflux |
| gastroesophageal reflux |
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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