MEDICAL
URETERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Small Intestine
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Stomach
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Esophagus
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Mouth
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Detailed explanation-1: -The lower esophageal sphincter (LES) is a bundle of muscles at the low end of the esophagus, where it meets the stomach. When the LES is closed, it prevents acid and stomach contents from traveling backwards from the stomach. The LES muscles are not under voluntary control.
Detailed explanation-2: -The one at the top of the esophagus is called the upper esophageal sphincter (UES) and the one at the bottom of the esophagus (which separates the esophagus from the stomach) is called the lower esophageal sphincter (LES).
Detailed explanation-3: -There is a muscular ring at the point where the esophagus and stomach meet. It is called the lower esophageal sphincter (LES). Normally, this muscle relaxes when you swallow to allow food to pass into the stomach.