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Physiology Exam 4 > female reproduction > Flashcards

female reproduction Flashcards

1
Q

low estrogen causes

A

negative feedback
* low but increasing estrogen - increased neg feedback

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2
Q

prolonged high estrogen causes

A

positive feedback

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3
Q

high estrogen + high progesterone causes

A

negative feedback

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4
Q

myometrium

A

smooth muscle around the uterus

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5
Q

endometrium

A

thickens, lose each month

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6
Q

when does mitosis occur in oogenesis

A

only before birth

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7
Q

when does meiosis occur in oogenesis

A

before birth, occurs again after puberty

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8
Q

when does the second meiotic division occur

A

only if fertilization occurs

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9
Q

release of progesterone decreases

A

GnRH
FSH
LH

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10
Q

what is needed to make estrogen

A

theca cells and granulosa

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11
Q

corpus leuteum

A

high levels of estrogen and progesterone also produces inhibin

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12
Q

surge in LH causes

A

ovulation
production of proteases
* breakdown wall of overy
* prostaglandin release
* first meiotic division

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13
Q

LH and FSH stimulate

A

estrogen production

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14
Q

theca cell lacks

A

enzyme to go from androgens to estrogen

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15
Q

FSH stimulates

A

follicles

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16
Q

in the luteal phase what is present

A

corpus luteum

17
Q

what happens during the follicular phase

A

follicles developing
rise in estrogen
slight rise in progesterone at end

18
Q

at ovulation what happens

A

LH surge
follicle disrupted
decreased estrogen
break positive feedback

19
Q

what happens in the luteal phase

A

increase in progesterone

20
Q

secondary follicles

A

increase estrogen
increase negative feedback
decrease FSH

21
Q

when is the endometrium thickest

A

luteal phase

22
Q

when is the endometrium thinnest

A

menstrual phase

23
Q

when does the endometrium start thickening

A

after menstrual phase, before secretory phase (follicular phase)

24
Q

menopause symptoms

A

decreased estrogen
* osteoporosis, hot flashes, mood swings

25
Q

hormone replacement therapy

A

take estrogen adn progesterone at menopause

26
Q

HRT prevents

A

osteoporosis
hot flashes
mood swings
*heart attack
*stroke

27
Q

HRt increases risk of

A

breast cancer
*heart attack
*stroke

28
Q

amenorrhea

A

absense of ovulation, menstruation

29
Q

causes of amenorrhea

A
  • pregnancy
  • menopause
  • nursing infant
  • stress
  • exercise
30
Q

why does human chorionic gonadotropin decrease after 2 months of pregnancy

A

the placenta can prodive its own hormones

Physiology Exam 4 (10 decks)

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