Why Is the Gastroesophageal Sphincter Normally Closed

question 167

Multiple Choice

Why is the gastroesophageal sphincter normally closed?

• A)to prevent air from entering the esophagus during breathing
• B)to prevent gastric contents from refluxing into the esophagus
• C) to prevent vomiting
• D) to prevent esophageal secretions leaking into the stomach

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