Question

Duodenum has characterized glands which secrete two hormones called as

• A. Kinase, estrogen
• B. Secretin, cholecystokinin
• C. Prolactin, parathormone
• D. Estradiol, progestrone

Answer 1

The correct option is B Secretin, cholecystokinin

Cholecystokinin, previously called pancreozymin, is synthesized by I-cells in the mucosal epithelium of the small intestine and secreted in the duodenum. It is responsible for stimulating the digestion of fat and protein. Secretin is a peptide hormone that regulates water homeostasis throughout the body, and influences the environment of the duodenum by regulating secretions in the stomach and pancreas. Secretin is produced in the S cells of the duodenum, which are located in the crypts of Lieberkuhn.