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

Question

Quizplus · Accepted Answer

The gastroesophageal sphincter is normally closed to prevent gastric contents from refluxing into the esophagus. If it were to remain open, stomach acid and undigested food would flow back into the esophagus, causing irritation, inflammation, and potentially leading to conditions such as gastroesophageal reflux disease (GERD).

Why Is the Gastroesophageal Sphincter Normally Closed