Question

the swallowing reflex is primarily what kind of movement? it serves to pass a bolus of food into what structure? involuntary, trachea involuntary, pharynx voluntary, pharynx voluntary, larynx involuntary, esophagus

Explanation:

The swallowing reflex is an involuntary action that helps pass a bolus of food from the pharynx into the esophagus. The trachea is for air - passage and not related to food - passage during swallowing. The larynx is part of the airway and not the structure food enters during swallowing. The pharynx is an intermediate structure, and the final destination for the bolus during swallowing is the esophagus.

Answer:

E. involuntary, esophagus