Answer:
A ring of muscle fibers in the lower esophagus prevents swallowed food from moving back up. These muscle fibers are called the lower esophageal sphincter (LES).
Symptoms: Heartburn
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A similar sphincter termed cardiac sphincter is present at the front end of the stomach to prevent back flow of food into the oesophagus.
Explanation:
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Answers & Comments
Answer:
A ring of muscle fibers in the lower esophagus prevents swallowed food from moving back up. These muscle fibers are called the lower esophageal sphincter (LES).
Symptoms: Heartburn
hope this helps ❤️
Verified answer
Answer:
A similar sphincter termed cardiac sphincter is present at the front end of the stomach to prevent back flow of food into the oesophagus.
Explanation:
Mark as brainlist please