Which of the following actions constitutes the voluntary stage of swallowing?
A) The tongue forces the bolus to move into the pharynx.
B) The entry of the bolus triggers the chemoreceptors in the pharynx.
C) The action potentials from the deglutination center trigger the elevation of the soft palate and the uvula.
D) The epiglottis closes to prevent the passage of the bolus into the larynx.
E) The upper esophageal sphincter relaxes to allow the entry of the bolus into the esophagus.

Question

Quizplus · Accepted Answer

The voluntary stage of swallowing involves the conscious effort to move the bolus from the mouth into the pharynx, which is achieved by the action of the tongue.

Which of the Following Actions Constitutes the Voluntary Stage of Swallowing