FSH enters the testes and stimulates the Sertoli cells to begin facilitating spermatogenesis using negative feedback, as illustrated in Figure 1. There are still eggs and potential follicles on the ovaries, but without the stimulation of FSH and LH, they will not produce a viable egg to be released.
Supplementation of estrogen in the form of hormone replacement therapy HRT can prevent bone loss, but the therapy can have negative side effects, such as an increased risk hormones stimulate the development of secondary sex characteristics in Port St. Lucie stroke or heart attack, blood clots, breast cancer, ovarian cancer, endometrial cancer, gall bladder disease, and, possibly, dementia.
Male Hormones The onset of puberty is controlled by two major hormones: FSH initiates spermatogenesis and LH signals the release of testosterone.
FSH stimulates the growth and maturation of follicles on the ovaries, which house and nourish the developing eggs; the follicle, in turn, releases inhibin, which inhibits the production of FSH. Follicle : This mature egg follicle may rupture and release an egg in response to a surge of LH.
Female Hormones The stages of the ovarian cycle in the female are regulated by hormones secreted by the hypothalamus, pituitary, and the ovaries. As spermatogenesis and testosterone production increase, the Sertoli cells produce inhibin, which, together with rising levels of testosterone, inhibit the release of FSH and LH from the pituitary gland.
Various symptoms are associated with menopause, including hot flashes, heavy sweating, headaches, some hair loss, muscle pain, vaginal dryness, insomnia, depression, weight gain, and mood swings. Search for:.