Which stage of swallowing is shown here?
A)Voluntary stage
B)Pharyngeal stage
C)Esophageal stage
D)Pyloric stage

Question

Which stage of swallowing is shown here? 
A)Voluntary stage 
B)Pharyngeal stage 
C)Esophageal stage 
D)Pyloric stage

Quizplus · Accepted Answer

The image shows the pharyngeal stage of swallowing, as the bolus is shown entering the pharynx (throat) and triggering the involuntary muscle contractions that propel it towards the esophagus. The voluntary stage occurs before this, when the tongue and other oral muscles manipulate the food to prepare it for swallowing, and the esophageal and pyloric stages come after the bolus has moved into the esophagus and towards the stomach, respectively.

Which Stage of Swallowing Is Shown Here