A hormone that regulates male secondary sex characteristics and the production of sperm cells in Mai

Pubic hair grows. Key Terms GnRH : Gonadotropin-releasing hormone is a trophic peptide hormone responsible for the release of follicle-stimulating hormone FSH and luteinizing hormone LH from the anterior pituitary. Stimulates the pituitary gland to release LH.

These include breast development, flaring of the hips, and a shorter period necessary for bone maturation. The pattern of activation and inhibition of these hormones varies between phases of the reproductive cycle. The follicles that did not rupture degenerate and their eggs are lost.

In females, LH plays a crucial role in signaling ovulation, as well as stimulating the production of other hormones that will prepare the body for pregnancy. The ovarian and menstrual cycles of female reproduction are regulated by hormones produced by the hypothalamus, pituitary, and ovaries.

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As women approach their mids to mids, their ovaries begin to lose their sensitivity to FSH and LH. Just prior to the middle of the cycle approximately day 14 , the high level of estrogen causes FSH and, especially, LH to rise rapidly and then fall. Human Reproductive Anatomy and Gametogenesis.

During puberty, in both males and females, the hypothalamus produces gonadotropin-releasing hormone GnRH , which stimulates the production and release of follicle stimulating hormone FSH and luteinizing hormone LH from the anterior pituitary gland.

Provided by : Wikimedia. A negative feedback system occurs in the male with rising levels of testosterone acting on the hypothalamus and anterior pituitary to inhibit the release of GnRH, FSH, and LH.

A hormone that regulates male secondary sex characteristics and the production of sperm cells in Mai

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