Question

Gastric secretion is stopped by hormone
(a)Enterogastrone
(b)Gastrin
(c)Pancreozymin
(d)Cholecystokinin

Answer 1

Hint: Our stomach produces various digestive juices which are essential for digestion of food. Gastric secretion is influenced by hormones and neural control. It includes various fluids like hydrochloric acid, pepsinogen, bicarbonate and mucous.

Complete answer:
-Enterogastrone is a hormone that is released by duodenal mucosa. It is released in response to the fatty food present in the stomach and small intestine. It is transported from bloodstream to the glands and then to the muscle of the stomach. It helps in inhibiting the production of gastrin and stops gastric secretions.

Additional Information: Hormones are chemical secretion which is released directly into the bloodstream. They then reach the target organ. There are five main hormones that are involved in the digestion of food in mammals – gastrin, secretin, cholecystokinin, gastric inhibitory peptide and motilin.
Gastrin stimulates the production of gastric acid. It is a peptide hormone. It is released by the G- cells of gastric antrum and duodenum. It enhances gastric mucosal growth, gastric motility, and production of hydrochloric acid. It also kills the bacteria that enter with food in the stomach. Pancreozymin is also called cholecystokinin. It is secreted by the enteroendocrine cells present in the duodenum. It regulates the release of the bile juice from the gallbladder and pancreas. Its main function involves improving digestion and controls appetite. It acts as a hunger suppressant. Its production is inhibited by somatostatin and pancreatic peptide.
So the answer is ‘Enterogastrone’.

Note: Below ph 2, the stomach inhibits the secretion of gastric juices. It is known as negative feedback. Gastric secretion is stimulated by the act of eating food known as cephalic phase and arrival of food in the stomach known as the gastric phase. Gastrin secretion is stimulated mainly by acetylcholine, histamine and gastrin.