Question

Secretin

• A. Stimulates enzyme secretion by pancreas, inhibits acid secretion in stomach, stimulate gall bladder.
• B. Stimulates bicarbonate secretion by pancreas inhibits acid secretion in stomach, stimulates bicarbonate secretion by liver.
• C. Stimulates acid secretion in stomach, potentiates action of CCK, inhibits intestinal movement.
• D. Stimulates gall bladder, inhibits acid secretion in stomach, stimulates bicarbonate secretion by pancreas.

Answer 1

Answer: (D)

Stimulates gall bladder, inhibits acid secretion in stomach, stimulates bicarbonate secretion by pancreas.

Secretin is a polypeptide hormone made up of 27 amino acids and secreted by the duodenal and jejunal mucosa, when acid chyme enters the intestine, secretin is released into the bloodstream and stimulates the acinar cells of the pancreas to secrete water and bicarbonate into the pancreatic ducts that drain into the duodenum.