A chemical substance produced and secreted by endocrine (ductless) glands that travels through the bloodstream and controls or regulates the activity of another organ or group of cells - its target organ. (For example, growth hormone released by the pituitary gland controls the growth of long bones of the body.) There are two main types of hormones...
A condition in children resulting from excess growth hormone characterized by an abnormal growth of the long bones and increased size of feet and hands
Pea-sized gland located in the center of the head behind the sinus cavity at the base of the brain; the pituitary consists of two parts that produce different hormones: 1) in the anterior portion, growth hormone (GH), adrenocorticotropin (ACTH), thyroid-stimulating hormone (TSH), lutenizing hormone (LH), follicle-stimulating hormone (FSH), and...
A condition in adults resulting from excess growth hormone characterized by enlargement of the hands and feet, change in shoe size, gradual changes in facial features, including protrusion of the lower jaw and brow, and enlargement of the nasal bone