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5 Cards in this Set

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  • Back
What cell types are FSH receptors on? Effects of FSH (2)? How bout FSH's impact on LH receptors?
Granulosa cells
Stimulates granulosa cells to proliferate and produce estradiol
FSH upregulates LH receptors on Theca cells
Explain how FSH receptors are upregulated by estradiol and how this counteracts estradiol's neg fdbk mechanism?
Estradiol, in the granulosa cells, causes upregulation of FSH receptors, making the cell more responsive to a dwindling FSH supply (due to neg fdbk at the hypo
What cell types possess LH receptors and what is the result?
Theca cells- produce androgens (testosterone) and result in the retrusion of the dominant follicle into the fallopian tube
Three phases of uterine change? What hormone dominates each and what happens?
Proliferative phase- estrogen dominates, causing the endometrium to proliferate and thicken
Secretory Phase- initiated by progesterone (corpus luteum) to prepare for implantation
Menstruation- progesterone falls and corpus luteum disintegrates/endometrium sloughs off
Estrogen's effect on cervical mucus (during follicular phase)? Progesterone's effect on cervical mucus (during luteal phase)?
Estrogen- causes mucus to become more watery and allows sperm to swim/survive
Progesterone- causes mucus to become thick and inhospitable to sperm