Effect of CCK on gut is: (A) Increases gastric acid secretion, (B) Increase small intestine peristalisis, (C) Increases gastric motility, (D) Relaxes gall bladder
Answer is B. CCK mediates digestion in the small intestine by inhibiting gastric emptying. It stimulates the acinar cells of the pancreas to release a juice rich in pancreatic digestive enzymes (hence an alternate name, pancreozymin) that catalyze the digestion of fat, protein, and carbohydrates Ref: guyton and hall textbook of medical physiology 12 edition page number:442,443,444