What is a ring of skeletal muscle that regulates the movement of a bolus into the esophagus?
A) epiglottis
B) lower esophageal sphincter
C) pyloric sphincter
D) glottis
E) upper esophageal sphincter

Question

Quizplus · Accepted Answer

The upper esophageal sphincter is a ring of skeletal muscle that regulates the movement of a bolus into the esophagus from the pharynx, ensuring that food proceeds in the correct direction during swallowing.

What Is a Ring of Skeletal Muscle That Regulates the Movement