Endocrine system consists of ductless glands linked by nervous and circulatory system. They secrete homones. The hormones help in the growth and other essential activities in the life process of the human body. Pituitary is a small gland located beneath the brain. It secretes the hormone whose over-secretion in childhood produces in adult life the disease called “acromegaly” where growth of nerds of the body is disproportionately increased giving a gorilla-like the P appearance.