Secretin:

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Question

(B) Secretin is a peptide hormone produced by the $S$-cells of the duodenum in response to low $pH$ (acidic chyme) entering the small intestine.Its pr

Vedclass · Accepted Answer

Stimulates the secretion of bicarbonate by the pancreas,inhibits acid secretion in the stomach,and stimulates bicarbonate secretion by the liver.

Vedclass · Answer

(B) Secretin is a peptide hormone produced by the $S$-cells of the duodenum in response to low $pH$ (acidic chyme) entering the small intestine.Its primary functions include:$1$. Stimulation of the pancreas to secrete water and bicarbonate ions $(HCO_3^-)$ into the duodenum to neutralize the acidic chyme.$2$. Inhibition of gastric acid secretion (gastrin release) from the stomach to prevent further acidification.$3$. Stimulation of the liver to increase bile production.Therefore,option $B$ is the most accurate description of its physiological roles.

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