Somatostatin is a hormone that plays a crucial role in the regulation of various physiological processes in the body. It is produced by certain cells, primarily in the hypothalamus and the pancreas. Somatostatin acts as an inhibitory hormone, meaning it suppresses the release of other hormones and has a broad range of effects on different organ systems. In the pancreas it suppresses secretion of insulin and glucagon.

Unit 3,

Reference: Oxford Concise Medical Dictionary (9th ed) Oxford University Press 2015 ISBN-13: 9780199687817, p2363