4 Questions
What is the function of the upper esophageal sphincter?
To prevent back flow from the esophagus into the pharynx
Why is the epithelium of the esophagus continuously replaced?
Due to the volume of food that passes inside the esophagus
Where is the esophageal inlet located?
Behind the cricoid cartilage
What triggers the opening of the upper esophageal sphincter?
Swallowing reflex
Learn about the structure and functions of the esophagus, including its sphincters, mucous membrane, and protective epithelium. Understand how the esophagus is connected to the pharynx and the triggers for its opening and closing.
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