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reproductive physiology female
R-GU
23
Medical
Graduate
10/12/2010

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Cards

Term
what are the 2 major phases which female reproduction can be divided into?
Definition
preparation for conception and pregnancy
Term
where does conception take place?
Definition
somewhere in the fallopian tube
Term
what does the acrosomal rxn prevent?
Definition
other sperm from penetrating the fertilized egg
Term
how long is the avg menstrual cycle?
Definition
28 days later
Term
what might happen if an STI causes scarring in the fallopian tubes?
Definition
ectopic pregnancy can occur if a fertilized egg can't get all the way down to the uterus and is stuck in the fallopian tubes.
Term
what is endometriosis?
Definition
when menstrual flow is retrograde through the fallopian tubes and causes pain in the peritoneum
Term
is ovarian torsion possible?
Definition
yes
Term
when is a woman most pregnant?
Definition
when the egg is traveling through the fallopian tube
Term
how do levels of FSH/LH change over the menstrual cycle? (*know this for exam*)
Definition
at the start of the cycle (menstruation), FSH is higher, until about 2 weeks (right before ovulation) when LH becomes higher (to prepare the corpus luteum for the egg), then after ovulation, LH levels drop, and FSH levels are once again higher.
Term
how do levels of estradiol/progesterone change over the menstrual cycle?
Definition
at the start of the cycle (menstruation), estradiol levels are higher and continue to rise until ovulation (2 weeks in), after which estradiol levels drop and progesterone rises higher until menstruation, when estradiol is once again higher.
Term
how do womens' body temperatures change depending on where they are in the menstrual cycle?
Definition
temperature rises .2-3 degrees after ovulation, then drops back down to ~98 degrees before menstruation
Term
what is the postulated ovulatory mechanism?
Definition
hyperemia of the ovaries to facilitate follicular rupture (which may cause some pain)
Term
what are the phases of endometrial growth?
Definition
proliferative (11 days - increase cells and in water wt), secretory (12 days - hormones which increase angiogenesis), and menstrual (5 days - sclerosis/contraction of endometrial tissues = ischemia/cramping and ejection)
Term
can hypothyroid affect the menstrual cycle?
Definition
yes b/c this involves the metabolism (same effect w/low body fat athletes)
Term
what might cause excessive bleeding w/menstruation?
Definition
uterine cysts - can cause problems w/implantation as well
Term
when does puberty/menarche start?
Definition
9-12 yrs old
Term
when does menopause start?
Definition
38-52 yrs old
Term
how many follicles are women born w/?
Definition
400-500 follicles at birth, which need to divide 2x more
Term
how long are ovum viable for?
Definition
24-48 hrs
Term
what happens during puberty?
Definition
secondary sex characteristics appear due to estrogen: maturation of genitalia, mons pubis, escutcheon, labia, and change in epithelium from cuboidal to stratified squamous, the skin becomes more tender, breasts develop, axillary hair appears, hips and legs become wider, metabolism increases (to support new processes), salt/water retention occurs, fallopian tubes mature, ovaries go through follicular maturation, and sex drive increases.
Term
what are coital changes in the female reproductive system?
Definition
lubrication, clitoral/breast enlargement, vaginal tenting, uterine contractions, perineal contractions, pubo-coccygeal contractions, and resolution (blood pressure med can affect this).
Term
what are contraception methods available for females?
Definition
the pill, barrier methods, tubal ligation, hysterectomy, and IUD (irritates uterine lining - prevents implantation)
Term
how does methotrexate inhibit pregnancy?
Definition
by inhibiting cell proliferation (anti-folate)
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