| A) | hypothalamic secretion of GnRH stimulates LH and FSH secretionin the anterior pituitary |
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| B) | FSH secretion in the anterior pituitary stimulates testosteronesecretion in theca cells and Leydig cells |
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| C) | FSH secretion in the anterior pituitary stimulates inhibinsecretion by granulosa cells and Sertoli cells of the ovary andtestis, respectively |
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| D) | LH secretion stimulates testosterone secretion in both ovariangranulosa and theca cells |
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| E) | LH secretion stimulates testosterone secretion in Leydig andtheca cells of the testes and ovaries, respectively |
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| F) | inhibin feeds back to turn down both LH and FSH secretion in theanterior pituitary |
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| G) | inhibin feeds back to selectively suppress LH secretion in theanterior pituitary without changing FSH secretion |
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| H) | inhibin feeds back to selectively suppress FSH secretion in theanterior piutitary without changing LH secretion |
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| I) | testosterone secretion in males always feeds back to inhibitGnRH secretion from the hypothalamus |
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| J) | testosterone secretion in males always feeds back to inhibitanterior pituitary responsiveness to GnRH |
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| K) | progesterone in high concentration has an inhibitory effect onGnRH secretion in the hypothalamus |
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| L) | similar to testosterone's effect in males, estrogen in femalesalways feeds back to inhibit GnRH secretion from thehypothalamus |
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| M) | when estrogen levels in females are low, estrogen feeds back atthe hypothalamus to inihibit GnRH secretion from the hypothalamussimilar to testosterone's effects in males |
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| N) | when estrogen levels in females are high and unaccompanied byhigh progesterone levels, estrogen is stimulatory, rather thaninhibitory to GnRH secretion in the hypothalamus |
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| O) | if estrogen levels in females are high but are accompanied byhigh progesterone levels, the powerful inhibitory effects ofprogesterone override the stimulatory effects of estrogen andsuppress GnRH secretion from the hypothalamus |
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