The duodenal sphincter is the internal mechanism to allow food to enter the stomach and to prevent gastric acid from entering into the esophagus. True False
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It does not directly prevent gastric acid from entering the esophagus. The esophageal sphincter, also known as the lower esophageal sphincter or gastroesophageal sphincter, is the mechanism that prevents gastric acid from entering the esophagus. Show more…
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