Answered By Gregory S

GnRh is gonadotropin releasing hormone, produced in the hypothalamus. It causes the antieror pituatary to relase hormones that effect the gonads (think testes and or ovary) those hormones being FSH and LH. so in short GnRh will increase the release of FSH and LH from the anterior pituatary. 

Answered By manjula b

Gonadotrophin-releasing hormone (GnRh) is produced and secreted by specialised nerve cells in the hypothalamus of the brain. 

it stimulates the production of two hormones – folliclestimulating hormone and luteinising hormone . These hormones are released into the general circulation and act on the tested and ovaries to initiate and maintain their reproductive functions. 

increase production of gonadotrophins leading to overproduction of testosterone or oestrogen. 

Thus increase the level of FSH and LH from anterior pituitary. 

Answered By Pearl V

It is quite simple. Think of this system as a loop.

GnRH is produced by the hypothalamus

GnRH stimulates the release of FSH and LH in the anterior pituitary

Answered By Pearl V

FSH and LH act on the ovaries in the female and the testes in the male