How does the increase in pH trigger the gastric phase of digestion?
A) It stimulates the secretion of hydrochloric acid in response to action potentials.
B) It activates the stomach receptors to send action potentials to the myenteric plexus.
C) It stimulates the release of the bicarbonate-rich fluid from the pancreas.
D) It stimulates the release of the hormone secretin from the S cells of ileum.
E) It activates the longitudinal and circular muscle layers of the muscularis externa.

Question

Quizplus · Accepted Answer

The increase in pH in the stomach can trigger the gastric phase of digestion by stimulating the secretion of hydrochloric acid (HCl) in response to action potentials. This is a feedback mechanism to maintain the acidic environment necessary for effective digestion.

How Does the Increase in PH Trigger the Gastric Phase