Question

Duodenum has characteristic Brunner's gland which secrete two hormones called

• A. kinase, estrogen
• B. secretin, cholecystokinin
• C. prolactin, parathormone
• D. estradiol, progesterone.

Answer 1

Answer: (B)

secretin, cholecystokinin

Answer 2

Brunner's glands are present in the duodenum region of small intestine. They secretes two hormones secretin and cholecystokinin. Secretin is secreted by cells in the duodenum when they are exposed to the acidic contents of the emptying stomach. It stimulates the exocrine portion of the pancreas to secrete bicarbonate into the pancreatic fluid (thus neutralizing the acidity of the intestinal contents). Cholecystokinin (CCK), a mixture of peptides, is secreted by cells in the duodenum when they are exposed to food. It acts- - on the gall bladder stimulating it to contract and force its contents of bile into the intestine. - on the pancreas stimulating the release of pancreatic digestive enzymes into the pancreatic fluid.