10B Hormonal Control of Reproduction
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44 Terms
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LH and FSH peak
at day 14
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average menstrual cycle
28 days
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middle of menstrual cycle
ovulation
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ovarian cycle phases
follicular and luteal phase
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when does estrogen peak
day 13
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when does inhibin peak
day 13
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when does progesterone peak
day 20
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LH peaks higher than FSH
true
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menses
destruction of functional zone
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proliferative
regenerate and repair
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secretory
secretion of endometrial glands
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LH is the hormone of
ovulation
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LH causes
release of the mature oocyte
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corpus luteum
yellow body left over after mature oocyte ruptures, transient in nature
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corpus luteum secretes
progesterone and estrogen
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when corpus luteum degenerates
progesterone and estrogen levels drop
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when estrogen and progesterone are below set point
hypothalamus releases more GnRH and cycle continues
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menses days
1-7
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menses day 1
growth of follicles
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proliferative days
7-14
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secretory phase
14-28
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corpus luteum primarily secretes
progesterone
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most stable phases of menstrual cycle
secretory
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secretory phase is usually
14 days
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ovulation can occur…
\+-3 days from predicted ovulation date
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uterine lining is thickest
24th day
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menstrual cycle can range
25-30 days
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older women tend to have
shorter mestrual cycles
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FSH function
stimulate growth and development of the follicle, estrogen enhances LH
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LH function
stimulates final follicle development, ovulation, corpus luteum development, progesterone
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estrogen function
stimulates uterine lining repair, inhibits FSH at high conc, sitmulates FSH at pituitary hormone surge, at peak, releases LH is stimulated
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progesterone
maintain uterine lining, inhibit FSH release, inhibit LH release, as i falls, a new cycle begins
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frequent menses
less than 24 days
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normal menses
24-38 days
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infrequent menses
more than 38 days
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absent menses
no menses
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regular cycle variation
2-20 days
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irregular cycle variation
more than 20 days
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prolonged flow
more than 8 days
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normal flow
4\.5-8 days
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shortened flow
les than 4.5 days
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heavy flow
more than 80ml
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normal flow
5-80ml
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light flow
less than 5 ml
Note 
Flashcards (35)