Question

Which of the following is/are functions of secretin?
I. It releases bicarbonates into the pancreatic juice
II. Promotes the secretion of bile
III. It inhibits gastric secretion and motility

• A. Only statement I
• B. Only statement II
• C. Only satement III
• D. All of them

Answer 1

The correct option is D All of them

Secretin is a hormone that is produced by the cells in the mucosal layer of the duodenum of the small intestine.
It helps the pancreas to stimulate and release bicarbonates into the pancreatic juice. It helps the liver by promoting the secretion of bile. It also inhibits the production of gastric juice and inhibits gastric motility.