Female Cycles Flashcards
all ___ _____ are produced prior to birth
primary oocytes
___ oocytes do not complete meiosis ____ unless fertilization occurs
secondary, 2
components of a primordial follicle
primary oocyte, flat follicle cells
a _____ ______ is an oocyte that is arrested in the first meiotic prophase
primordial oocyte
primary follicle components
primary oocyte, cuboidal cells
what surrounds the primary follicles?
zona pellucida
secondary follicle components
primary oocyte, many layers of granulosa cells, antrum (fluid filled space)
tertiary follicle components
secondary oocyte, zona pellucida, antrum
when a mature follicle ruptures and expels the oocyte, the remnants of the follicle remaining in the ovary turn into the ___ _____
corpus luteum
what hormones are expelled from the corpus luteum?
progesterone, estrogen
when the corpus luteum regresses, in turns into a connective tissue scar called the ____ _____
corpus albicans
time of appearance: primordial follicle
fetal period
time of appearance: primary follicle
puberty
time of appearance: secondary follicle
puberty
time of appearance: tertiary follicle
puberty
time of appearance: corpus luteum
puberty
time of appearance: corpus albicans
puberty
type of oocyte: primordial follicle
primary
type of oocyte: primary follicle
primary
type of oocyte: secondary follicle
primary
type of oocyte: tertiary
secondary
type of oocyte: corpus luteum
none
type of oocyte: corpus albicans
none
estrogen is produced by cells under the control of ____
FSH
estrogen is responsible for ____ ___ _____
secondary sex characteristics
progesterone is produced mainly by the ___ _____
corpus luteum
follicular phase days
1-13
main occurrence of the follicular phase?
FSH and LH stimulate follicle to increase
main purpose of FSH during follicular phase
stimulate growth of a new follicle, as the previous cycle did not end with fertlization
as the follicular phase transitions to ovulation, what happens to FSH?
is decreasing, has small peak
as the follicular phase transitions to ovulation, what happens to LH?
is increasing, large spike at ovulation and then remains high
____ is produced by the follicle during the follicular phase
estrogen
____ has a feedback mechanism to stop the production of FSH
estrogen
what is happening to estrogen levels as the follicular phase transitions to ovulation?
is increasing, peaks at ovulation and then decreases
estrogen promotes the production of ___
LH
ovulation is triggered by what hormone?
LH
post ovulation, what do the levels of FSH and LH look like?
both remain low, LH stays higher than FSH until next cycle begins
post ovulation, what do the levels of estrogen and progesterone look like?
estrogen remains lower, progesterone has it’s peak to prepare the uterus for implantation, then decreases below estrogen when new cycle starts
ovulation occurs around day ____
14
there is high ____ levels during ovulation to thicken the endometrium
estrogen
luteal phase days
15-28
estrogen discourages ____ production but encourages ___ production
FSH, LH
menses corresponds with what ovarian phase?
follicular
proliferative corresponds with what ovarian phase?
follicular, ovulation
secretory corresponds with what ovarian phase?
luteal
