IV.E.1 Neck: Nasopharynx

IV.E.1 Neck: Nasopharynx Page 3 of 4

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	Step 8: Add the superior constrictor.
	Step 9: Add the middle constrictor.
	Step 10: Add the inferior constrictor.

	What is the function of these muscles?
Constricts the pharynx and helps to push the a food bolus toward the esophagus.
	What nerve innervates these muscles?
Vagus nerve CN X.