During the cephalic phase of gastric secretion,
A) the stomach responds to distention.
B) secretin inhibits parietal and chief cells.
C) there is an increased flow of action potentials along the vagus nerve to the stomach.
D) the intestine reflexively inhibits gastric emptying.
E) production of gastric juice slows down.

Question

Quizplus · Accepted Answer

The cephalic phase of gastric secretion is initiated by the sight, smell, taste, or thought of food. This stimulates the parasympathetic nervous system, which increases the flow of action potentials along the vagus nerve to the stomach. This leads to increased secretion of gastric juice, including hydrochloric acid and pepsinogen.

Therefore, the correct answer is (C) there is an increased flow of action potentials along the vagus nerve to the stomach.

During the Cephalic Phase of Gastric Secretion