Endocrinology & Disorders

Endocrine Glands and Hormones

All organs that secrete hormones or hormone-like substances are considered part of the endocrine system. For example, the kidneys produce the hormone renin, which functions as an enzyme to help control blood pressure, and the hormone erythropoietin to stimulate the bone marrow to produce red blood cells. In addition, the digestive tract produces a variety of hormones that control digestion, affect insulin secretion from the pancreas, and alter behaviors, such as those associated with hunger. Fat (adipose) tissue also produces hormones that regulate metabolism (how the body uses foods to control chemical processes in the body) and appetite. Endocrine glands release their hormones directly, into the bloodstream, Exocrine glands release hormones or other substances into a duct, Hypothalamus, Pituitary gland,Thyroid gland,Testes in men, and the ovaries in women.