Hypothalamus and anterior pituitary

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Tropic Hormones (effect on endocrine glands)

ACTH (adrenocorticotropic hormone): stimulates production of glucocorticoids and androgens by adrenal cortex; maintains size of zona fasciculata and zona reticularis of the adrenal cortex.

TSH (thyroid stimulating hormone): stimulates production of T3 and T4; maintains size of follicular cells.

FSH (follicular stimulating hormone): stimulates development of ovarian follicles; stimulates the development of spermatogenesis in testis.

LH (luteinizing hormone): stimulates ovulation and formation of corpus luteum in ovary; stimulates production of estrogen and progesterone by the ovary; stimulates testosterone production in testis.

Non- tropic Hormones (effect on target tissues)

GH (growth hormone): promotes growth via protein synthesis, cell division, and differentiation.

PRL (prolactin): stimulates milk production and secretion.

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