Question

Somatostatin

• A. Stimulates glucagon release and inhibits insulin release
• B. Stimulates release of insulin and glucagon
• C. Inhibits release of insulin and glucagon
• D. Inhibits glucagon release and stimulates insulin release

Answer 1

Answer: (C)

Inhibits release of insulin and glucagon

Somatostatin is secreted from hypothalamus and inhibits the release of growth hormone from pituitary gland. It is also produced in pancreas. Pancreas have three types of cells:

1. Alpha cells: secrete glucagon which increases blood glucose level
2. Beta cells: secrete insulin which decreases blood glucose level
3. Delta cells: secrete somatostatin which inhibit secretion of glucagon and insulin.

So, the correct answer is 'Inhibits release of insulin and glucagon'.