A gorilla like appearance with huge hands and legs is due to abnormal secretion of

GH (growth hormone), secreted from anterior pituitary gland, stimulates growth of body by synthesis and deposition of protein in tissue, increase glucose level in blood by decreased secretion of insulin, increased cell division ad increased growth of bones by increased absorption of calcium from intestine. Hyper secretion of GH leads to acromegaly in adults which is characterised by gorilla like appearance with huge hand and legs.