Final answer:
Somatotropin is a Growth Hormone essential for growth and cellular functions while somatostatin is a regulatory hormone that inhibits the secretion of GH. Somatomedin refers to growth factors, like IGF, that mediate some effects of Growth Hormone.
Step-by-step explanation:
Somatotropin, also known as Growth Hormone (GH), is a protein hormone produced by the anterior pituitary gland. It plays a vital role in growth, protein synthesis, and cellular replication. This hormone operates through both direct and indirect means, having an anabolic effect on the body by promoting tissue building and protein synthesis. The levels of GH in the body are regulated by growth hormone-releasing hormone (GHRH) and growth hormone-inhibiting hormone (GHIH), also referred to as somatostatin.
Somatostatin is a hormone produced by the hypothalamus and the pancreas that serves to inhibit the production of GH by the pituitary gland and affects the secretion of other hormones such as insulin and glucagon. It acts as part of a feedback system to ensure hormone levels remain in balance.
Somatomedin, often referred to as Insulin-like Growth Factor (IGF), is a growth hormone that assists in the effects of GH. IGF is produced in the liver and other tissues in response to GH stimulation, and it promotes growth in various cells and tissues throughout the body.