Swallowing is totally a voluntary action.
Swallowing begins as a voluntary action but then becomes involuntary as the bolus gets closer the stomach.

Question

Quizplus · Accepted Answer

Swallowing is actually a reflex action that involves both voluntary and involuntary components. The voluntary component involves initiating the swallow, while the involuntary component involves the automatic contraction of muscles in the esophagus to move the bolus towards the stomach. Once the bolus enters the pharynx, the involuntary component takes over and the swallow becomes reflexive. Therefore, swallowing is not totally a voluntary action.

Swallowing Is Totally a Voluntary Action