The female reproductive system is regulated by hormonal interactions between the brain, anterior pituitary gland, and ovaries. GonadotropinReleasing Hormone (GnRH), also referred to as luteinizing hormonereleasing hormone, is a small peptide secreted by the brain. The anterior pituitary glands gonadotropins are specialized cells that secrete the gonadotropins Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH).