Question

Duodenum has characteristic Bruner’s gland which secretes two hormones called as.
A. Protaitra, Parathormone
B. Secretin, cholecystokinin
C. Entrocrinim, luocsinin
D. Gastrin, enterogastrone

Answer 1

Hint: Duodenum is the first part of the small intestine which lies between the stomach and jejunum (middle part of the intestine). Bruner’s gland is predominantly located in the duodenal submucosa. They secrete two important digestive hormones.

Complete answer: Bruner’s glands are present in the duodenum region of the small intestine. They secrete hormones such as secretin and cholecystokinin that helps in regulating water homeostasis throughout the body and influences the environment of the duodenum by regulating secretions in the stomach, pancreas and liver. Cholecystokinin is a digestive hormone rebased with secretion when the food from the stomach reaches the first part of the small intestine.
Secretin stimulates the exocrine part of the pancreas to secrete bicarbonate into the pancreatic fluid. It acts on the gallbladder stimulating it to contract and force its contents of bile into the intestine the main function of these glands is to produce a mucus- rich alkaline secretion so that it protects the duodenum from the acidic content of chyme, Lubricates the intestinal walls and provides an alkaline condition to activate the intestinal enzymes. The hormone cholecystokinin has receptors through the central nervous system and the gut. It is also produced by certain neurons of the brain.
So, the correct answer is option B.

Note: cholecystokinin helps in digestion and appetite secretion. It also helps in the regulation of gastric acid, osmoregulation, regulation of pancreatic bicarbonate, etc. It is a hormone secreted by the I-cells of the upper small intestine in response to fat, protein, etc.