Negative feedback control of sex hormones can be found at two levels: _________.?

Negative feedback control of sex hormones can be found at two levels: _________.





a) The cerebrum signaling the hypothalamus as well as the anteriopr pituitary secreting gonadotropic hormone


b) The hypothalamus secreting the relasing hormone as well as the anterior pituitary secreting gonadotropic hormone


c) The thalamus secreting releasing hormone as well as the anterior pituitary secreting growth hormone


d) The anterior pituitary secreting gonadotropic hormone as well as the adrenal cortex secreting releasing hormone.Negative feedback control of sex hormones can be found at two levels: _________.?
Lil Butterfly,


Your answer is “D”, because the neurons in the hypothalamus secrete gonadotrophin-releasing hormone (GnRH), which is transported through local blood capillaries to the nearby anterior lobe of the pituitary gland. The whole cascade of hormone secretions, from the hypothalamus to the anterior pituitary gland to the gonads, is tightly controlled by feedback effects of the gonadal steroids, which in turn act on both the hypothalamus and the pituitary gland to regulate the secretion of GnRH and of gonadotrophins. In the male these feedback effects are always negative. This means that when secretion of the male hormone, testosterone, increases, the release of GnRH and luteinizing hormone - LH will decrease — inhibited by the rising level of testosterone in the blood.





Hope this helps


matador 89Negative feedback control of sex hormones can be found at two levels: _________.?
Lil Butterfly,


And, as usual, you're welcome!


m.89

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