A circular band of muscle that closes the last few centimeters of the esophagus and prevents the backward flow of stomach contents.
Esophageal sphincter
| Medical Glossary: Esophageal sphincter |
| 5min Related Video: Esophageal sphincter |
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 | LES |
| gastric reflux |
| lower esophageal sphincter |
 | How esophageal sphincter works? Read answer... |
| What is the function of the esophageal sphincter? Read answer... |
| Why is the lower esophageal sphincter called cardiac sphincter? Read answer... |
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 | Gaping lower esophageal sphincter? |
| Why is the Lower esophageal sphincter called the cardiac sphincter? |
| What drugs weaken the lower esophageal sphincter? |
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Related answers
- What is an esophagal sphincter?
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- What is gaping lower esophageal sphincter?
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Mentioned in
- gastroesophageal reflux disease
- Which medical condition may occur when the lower esophageal sphincter does not close properly? (anatomy)
- Achalasia
- Antigastroesophageal Reflux Drugs: Purpose
- dysphagia
- megaesophagus
- Achalasia: Causes and symptoms
- Hernia: Alternative treatment
- Achalasia: Diagnosis
- Esophageal Function Tests: Abnormal results
