Which of the Following is True During Deglutition

Question

Which of the following is true during deglutition?
A) The upper esophageal sphincter opens and the soft palate elevates.
B) The larynx elevates and the epiglottis opens.
C) The stomach contracts and rugae appear.
D) Peristalsis discontinues and the lower esophageal sphincter opens.
E) Heartburn causes the upper esophageal sphincter to open.

Accepted Answer

During deglutition (swallowing), the upper esophageal sphincter opens to allow food to enter the esophagus from the pharynx, and the soft palate elevates to prevent food from entering the nasal cavity.