Question

Which is the second phase of the swallowing process, beginning when the bolus comes into contact with the palatal arches?

Answer 1

The second phase of swallowing is the pharyngeal phase, which involves the stimulation of receptors in the oropharynx and the movement of the uvula and soft palate. The laryngeal muscles also constrict to prevent food from entering the trachea.

Step-by-step explanation:

The second phase of the swallowing process, beginning when the bolus comes into contact with the palatal arches, is the pharyngeal phase. During this phase, stimulation of receptors in the oropharynx sends impulses to the deglutition center in the medulla oblongata, which then sends impulses to the uvula and soft palate. The laryngeal muscles also constrict to prevent food from entering the trachea.