18- Stress and Fertility Flashcards Preview

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Flashcards in 18- Stress and Fertility Deck (26):
1

what is fertility?

capacity to reproduce (being pregnant and carrying to term)

2

what is infertility ?

12 months trying with no pregnancy
inability to carry to term

3

what are gonads ?

sex gland in which gametes are produced.
eg ovaries, testes

4

gonad production is regulated by which structures in the brain ?

the hypothalamus

5

what is the HPG axis

hypothalamus releases a releasing hormone that goes to anterior pituitary
ant pituitary releases LH and FSH
gonads released

6

what happens if luteinizing hormone is too high

premature menopause/ testicular failure

7

what happens if LH is too low

failure of gonadal function

8

what triggers ovulation ?

an LH surge

9

what triggers testosterone production ?

LH surge

10

what happens if FSH too high

premature menopause/testicular failure

11

what happens if FSH too low

failure of gonadal function

12

what does FSH do in females (2)

growth and recruitment of ovum
attachment of egg to uterine wall (pregnancy continuation)

13

what does FSH do in male

stimulate maturation of seminiferous tubules and spermatogenesis

14

how does stress affect reproductive function in male rats

stress condition: immobilized for 2 weeks 3 hours a day

glucocorticoid increase, increase in RFRP, associated with inhibited HPG activity, therefore decrease in reproductive function

15

what happens if rats are forced to swim for 3 min in water for 15 days in terms of fertility?

didn't affect fertility but affected sperm production

16

explain the dose response relationship between stress and fertility

stress affects sexual behavior
longer stress will present a significant decrease in fertility rates

17

why are ejaculatory disorders a fertility issue ?

bc if you can't ejaculate there is no sperm

18

why can shift work affect fertility

disrupted circadian rhythm

19

do women have less stress in months before they conceive

self-reports say yes
hormone assays say no

20

is sperm quality affected by major stressors ?

yes. the experience of two or more life events was associated with decreased sperm concentration, worse motility and morphology

21

what is the effect of therapy on male fertility

number of healthy sperm higher after therapy

22

what is the relationship between stress and infertility

bidirectional

23

why is infertility especially hard on women?

social pressures on women to have children

24

which kind of women suffer most from infertility stress ?

those whose roles are limited- housewives

25

compared to women with an intermediate level of stress, women with a high level of stress had a ...% increased risk of stillbirth .

80

26

women with high stress did not have a higher risk of miscarriage due to stress alone. what was the other factor ?

drug use