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39 Cards in this Set

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SSRI-Selective Seretonin Reuptake Inhibitors
Seretonin-feel good neurotransmitters
Dopamine-feel good neurotransmitters
SSRI-prevents seretonin from going back to interstitial fluid, this might be a cause of not having an orgasm
Why is the egg 2,000 times larger than the sperm?
so it has the mechanisms for the egg
When do sperm become motile?
in the ejaculatory duct but they are not yet fully mature
Capacitation
Conditions Vagina makes so that the sperm is fully functional
How many sperm in the vagina?
500million go into vagina
10,000 make into uterus
100 make it to the egg
1 sperm makes it into the egg
Oocyte activation
sperm delivers its chromosomes to the egg, no more sperm can get to the egg because of chemical reactions
Poly spermy
more than 1 sperm getting to the egg
when are males usually sterile?
when their sperm count is less than 20million
Gestation
lasts 40weeks
and goes through 3 trimesters
1st trimester
embronic and fetal development, major components begin to develop
heart is one of the first to develop
2nd trimester
Organ systems become almost complete and fetus begins to look normal
3rd trimester
very rapid growth, organ systems are all complete and then the woman goes into labor
Placenta
major capillary bed, exchange of nutrients between mother and fetus
Umbilical Cord
2 Arteries that take blood away from heart and one vein
Respiration
done through the placenta
Labor
Oxycotin hormone promotes labor
3 stages:
dilation
expulsion
placental
Dilation
cervix dilates, fetus begins to slide down contractions increase in frequency and strength and amnion fluid ruptures
Expulsion
Cervix completely dilates, fetus emerges from vagina
Placental
Uterine contractions continue, tears placents away from wall of uterus so the placenta is expelled. 500mL of blood lost and it is easily tolerated because the woman increases her blood volume while she is pregnant
Episitomy
A controlled tear of the vagina so the baby can come out easier
Protapsed
uterus comes out of vagina when baby is born
Twins
Fraternal
Identical
Fraternal
70% same genetic relationship as brother and sister- 2 eggs and 2 sperm- BB, BG, GG
Identical
30%-1 egg and 1 sperm- at fertilization zygote splits and separate masses of cells inside the same sack, GG, BB-exact same genetics
Aging-Women
45-50years women go through menopause, cessation of menses, no more vilable follicles to respond to FSH, dont get progestrone so you dont get the cycles of LH and FSH. Hormonal balance change, effects include osterprosis, nueral effects-hot flashes, anxiety, depression, atherosclerosis (hardening of arteries)
Aging-Male
Male anti-climacteric- 50-60 years
at 23-30years the testostrone decreases and cant maintain Libido, FDH and LH levels increase, testosterone replacement therapy
Vasectomy
In the spermatic chord, takes vas deferens out and clips them, prevents sperm of getting out 10% result in persistant pain, day surgery
Tubal Ligation
Cut fallopian tubes, prevent egg from getting into uterus
Condoms
Male and Female condoms a barrier that prevents sperm to gett and prevents STD's
Diaphragm
fits over the end of uterus "cervix" barrier that keeps sperm from uterus
IUD
Interuterine Device-Inserted inside the uterus and left there, sperm has no chance to get to the egg
Pill
Usually a chemical that prevents the release of eggs, fools the body into thinking its pregnant
Spermicide
a toxin that kills spern
Abortion
termination of fetus, after fertilization can be mechanical and chemical
Castration
removal of male gonads
Hysterectomy
removal of ovaries, radical (?) Hysterectomy-removal of ovaries and uterus
Coitus Interuptus
ineffective, stopping intercourse before ejaculating
Rythym Method
Using monthly cycle by having sex during the right time
Abstinence
if sperm dont meet egg, no fertilization