In response to the arrival of acidic chyme in the duodenum, the
A) blood levels of secretin rise.
B) blood levels of cholecystokinin fall.
C) blood levels of gastrin rise.
D) blood levels of enterocrinin fall.
E) liver releases enzymes for chemical digestion.

Question

Quizplus · Accepted Answer

When acidic chyme enters the duodenum, it stimulates the release of secretin into the bloodstream, which helps regulate the pH by inhibiting gastric secretion and stimulating bicarbonate release from the pancreas.

In Response to the Arrival of Acidic Chyme in the Duodenum