Pituitary Gland

Also called  hypophysis  one of the endocrine (ductless) glands that secrete their hormones directly into the bloodstream. The term hypophysis (from the Greek, “lying under”) refers to the gland's position on the underside of the vertebrate brain. Until the late 19th century the human pituitary was thought to be a vestigial organ, but it is now known to play a major part in the regulation of endocrine