Correct option is C
Somatostatin is a hormone that is produced in several locations in the body, not from a single site. It is synthesized in the hypothalamus, pancreas, and gastrointestinal tract. The somatostatin produced in the hypothalamus regulates the release of growth hormone from the pituitary, while somatostatin from the pancreas regulates insulin and glucagon secretion. Additionally, somatostatin is involved in inhibiting the release of gastrointestinal hormones.
In contrast:
- Thyrotropin releasing hormone (TRH) is produced exclusively in the hypothalamus and stimulates the release of thyroid-stimulating hormone (TSH) from the anterior pituitary.
- Corticotropin releasing hormone (CRH) is also produced exclusively in the hypothalamus and stimulates the release of ACTH from the anterior pituitary.
- Somatotropin (also known as growth hormone, GH) is produced exclusively in the anterior pituitary and regulates growth, metabolism, and cell reproduction.
Information Booster:
- Somatostatin is a multi-site hormone that acts as a regulator in several physiological processes.
- Hypothalamic somatostatin inhibits the release of growth hormone (GH) and thyroid-stimulating hormone (TSH).
- Pancreatic somatostatin regulates insulin and glucagon secretion, influencing blood sugar levels.
- Gastrointestinal somatostatin inhibits the release of various hormones involved in digestion, such as gastrin.
- The presence of somatostatin at multiple sites allows it to have a wide range of inhibitory functions in different tissues.
