Swallowing happens in three stages. Which stage(s) is/are voluntary and which stage(s) is/are involuntary?

Question

Quizplus · Accepted Answer

Stage one of swallowing, or the oral preparatory phase, is voluntary, as it involves chewing and manipulating food with the tongue and teeth. Stages two and three, the pharyngeal and esophageal phases, are both involuntary, as they involve the contraction of muscles in the throat and esophagus that propel the food down into the stomach.

Swallowing Happens in Three Stages