The principal hormone produced by anterior lobe of pituitary are following :
(a) Follicle Stimulating Hormone (FSH) : It
stimulates the testis in man to produce sperms i.e., spermatogenesis and ovaries in female to produce ova (oogenesis). It also stimulates ovaries to secrete female sex hormone called estrogens.
(b) Luteinizing Hormone (LH) : It stimulates testis to secrete male sex hormone named androgens and testoterone. It also stimulates ovaries to secrete the female sex hormone called progesterone. In females together with FSH it triggers ovulation, stimulates conversion of ovarian follicles into corpus luteum which secretes oestrogen and progesterone.
(c) Prolactin Hormone (PLH) or Luetotrophic Hormone (LTH): It stimulates milk production and secretion, participates in control of reproduction, osmoregulation, growth and metabolism.
(d) Thyrotropin or Thyroid stimulating Hormone : It stimulates the growth of thyroid gland and the secretions of thyroid hormones.
(e) Corticotropin or Adrenocorticotropic Hormone:
It stimulates the adrenal cortex to grow and secrete its glucocorticoids, mineralocorticoids and gonadocorticoids
(f) Somatotropic Hormone (STH) or Growth Hormone (GH) : It stimulates baby growth by stimulating retention of proteins and calcium in the body, synthesis and deposition of proteins in tissues, growth and elongation in long bones and proportionate growth of muscles and visceral organs.
(g) Melanocyte Stimulating Hormone (MSH) : It appears to be functional only in cold blooded animals such as fishes, amphibians and reptiles. It makes the skin darker or lighter so that animals can protect themselves from the attack of enemies