Anatomy of the Esophagus

To allow food to pass through when triggered by the swallowing reflex

To close the esophagus at rest

To prevent back flow from the esophagus into the pharynx (correct)

To protect the mucous membrane of the esophagus

To allow food to pass through easily

Due to the volume of food that passes inside the esophagus (correct)

To reinforce the muscular wall of the esophagus

To maintain an acidic environment in the esophagus

Inside the pharynx

At the opening of the mouth

In front of the cricoid cartilage

Behind the cricoid cartilage (correct)

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