What occurs during the cephalic phase of gastric digestion?
A) CCK is secreted by the small intestine.
B) Chemoreceptors detect fatty acids in the duodenum.
C) Stretch receptors detect distension of the stomach.
D) Sight, smell, thought, or taste of food trigger parasympathetic impulses.

Question

Quizplus · Accepted Answer

During the cephalic phase of gastric digestion, the sight, smell, thought, or taste of food triggers parasympathetic impulses, which stimulate the release of gastrin from the G cells of the stomach. This increases gastric secretions and motility, preparing the stomach for food that is about to be ingested.

What Occurs During the Cephalic Phase of Gastric Digestion