Which of the following statements is not true of swallowing?

A) The buccal phase is a voluntary phase.
B) Breathing stops during the pharyngeal phase.
C) Primary peristaltic waves are controlled by the facial nerves.
D) Secondary peristaltic waves are needed if the bolus is dry.
E) The lower esophageal sphincter relaxes to allow the bolus to enter the stomach.


C

Anatomy & Physiology

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