Gonadotropin-releasing hormone (GnRH) is produced in the brain and acts on the pituitary gland.

True

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False

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Solution

The correct option is A True
GnRH is produced by the hypothalamus of the brain and it acts on the pituitary gland. GnRH helps pituitary to release gonadotropins which further act on sex organs.

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Q. Testosterone is a steroid hormone produced by all vertebrate animals and, in humans and other mammals, it is secreted in large amounts by the testes of males and to a much lesser extent, the ovaries of females. In adult males, testosterone plays a key role in the development of reproductive organs and it promotes the secondary sexual characteristics of body and facial hair, increased muscle and bone mass, and a deep voice. Testosterone, like all hormones, works via long distance signaling and is regulated by other hormones as illustrated below:

Figure 1:

Testosterone regulation by cooperation between the hypothalamus, pituitary, and testicular endocrine glands. The major regulatory hormones involved are luteinizing hormone (LH), follicle-stimulating hormone (FSH) and gonadotropin-releasing hormone (GnRH).

When testosterone levels are low, gonadotropin-releasing hormone (GnRH) is released by the hypothalamus, which in turn stimulates the pituitary gland to release FSH and LH. FSH and LH then stimulate the testis to produce testosterone.
How is homeostasis achieved when testosterone levels begin to rise?

Which hormones are produced and released by posterior pituitary gland?

Adolescence in humans is triggered by release of hormones from the pituitary gland. Where is this gland located in the brain?

The gonadotropin releasing hormone (GnRH) released by the _____(i)_____stimulates the ___(ii)______ to release ___(iii)______ and _____(iv)______. The _____(iii)____ stimulates the leydig cells to produce____(v)______. The ____(iv)___ stimulates the sertoli cells to secrete substances important for sperm development.

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Gonadotropin-releasing hormone (GnRH) is produced in the brain and acts on the pituitary gland.

The correct option is A TrueGnRH is produced by the hypothalamus of the brain and it acts on the pituitary gland. GnRH helps pituitary to release gonadotropins which further act on sex organs.

The correct option is A True
GnRH is produced by the hypothalamus of the brain and it acts on the pituitary gland. GnRH helps pituitary to release gonadotropins which further act on sex organs.