Intro to Contraception & Barrier Methods Flashcards
t/f we are the least pregnant generation yet
true
what is the average age of first birth?
30 years
unplanned pregnancies occur most often in people aged ____ to ___
20 - 29
nearly 1 in __ people have at least 1 abortion in their lives
3
structure of the ovaries
oval structures, approximately 2 inches, attached ti uterus but not to fallopian tubes
at birth, the ovaries contain thousands of eggs, all contained in a ____
follicle
once all eggs have been released, a woman reaches ___
menopause
structure of the cervix
connection between vagina and uterus
what is the function of the cervix?
secretes mucous that typically impedes sperm, but becomes slippery during ovulation
structure of vagina
tube shaped canal that is typically 4-6 inches long, contains a mucousal layer and msucles that help dilate and constrict
structure of fallopian tubes
4-5 inches long connected to uterus w/ frimnriae near the ovaries to catch ovum
structure of the uterus
pear-shaped, 3 inches long, 2 inches wide, made of firm muscles of myometrium and vascular endometrial lining
Each month, based on ____changes, one follicle increases in size and is released through ovulation
hormonal
where does sperm typically meet the ovum?
in the fallopian tube
what is the corpus luteum?
the ruptured follicle
what happens to the corpus luteum if fertilization does not occur?
it disintegrates
what are the 2 gonadatropins?
LH and FSH
FSH and LH are released by the ____
pituitary gland
when estrogen levels rise in the ____ phase, it stimulates that hypothalamus, causing the making and release of _____
follicular; progesterone
progesterone released by the hypothalamus triggers a ____ surge shortly before day 14
LH
progesterone levels throughout the cycle cause a negative feedback on the hypothalamus & pituitary so that ____ and ___ are not released
FSH and LH
progesterone levels are low in the ___ phase, but rise in the ___ phase, which turns off FSH and LH
follicular; luteal
why does the loss of the corpus luteum (the old ovum follicle) cause menstruation?
it is not around to secrete estrogen and progesterone, so the endometrium cannot be maintained and is lost through the vagina
how does the cycle start up again with menstruation?
teh estrogen and progesterone levels are so low that there is no longer negative feedback on the hypothalamus & pituitary