Exam 1 Flashcards
(173 cards)
ovarian cycle consists of
follicular phase, ovulation, luteal phase
dev/release of oocyte in ovary and follicular maturation
uterine/endometrial cycle consists of
menstrual phase
proliferative phase
secretory phase
preps the endometrium for implantation of fertilized ovum and shedding of lining when implementation does not occur
follicular phase
Day 1-7
starts last few days of last period until release of mature follicle; produce ovum in prep for fertilization
ESTROGEN DOMINANCE
ovulatory phase
Day 14
LH surge, ovulation happens 10-12 hrs afterwards
progesterone lvls increase = suppress new follicles
luteal phase
Day 15-28
if no conception = follicle luteinization; corpus lute forms then regresses and levels rapidly fall, allowing FSH/LH rise again for new cycle
PROGESTERONE DOMINANCE
menstrual phase
Day 1-5
Menses
proliferative phase
Day 6-14
rising lvls of estrogen & endometrial tissue develops
secretory phase
Day 14-28
rising progesterone shifts to secretory tissue
gland tortuous, thicker,
Day 21-27 prep uterus to accept fertilized ovum
estrogen function
proliferates and thickens endometrium which stimulates progesterone receptors & increases blood flow to endometrium
causes + feedback to make LH surge and FSH
progesterone function
causes endometrium to differentiate and secrete proteins that aid in survival and implantation of early embryo
decreases proliferative effects of estrogen on endometrium
what happens to endometrium when estrogen and progesterone w/drawal
sloughing / menstrual cycle
estrogen side effects
gall bladder dz
bone growth / density
reduced vascular tone
blood clot
progesterone benefits
protects fibrocystic breasts, prevent breast cancer, maintain secretory phase of endometrium / prevent cancer
abnormal uterine bleeding
Issue of timing, amount, or volume of bleeding
Variations of bleeding is from higher or lower lvls of prog or estrogen in body
Single variations in bleeding can be __ and due to ___
normal
exercise, activity, travel, time zones, emo stress, unknown
Reassurance!
frequent cycle days
occurs < 24 days between cycles
normal cycle days
24-38 days
hallmark of luteal phase is shift from
estrogen dominant in follicular phase to progesterone dominance in luteal phase
once corpus lute regresses from no pregnancy, these hormones decline
estrogen and progesterone
In menstrual phase, there is a phase called
ischemic phase which is destruction of functional zone
uterus sheds lining = drop in estrogen and progesterone
in mid to late follicular phase, estradiol levels increases causing the cervical mucus to become
clear, thin, profuse
cervix swells, softens, os dilates
after ovulation, progesterone causes the cervix to become
firm, os closes, mucus scant and thick
infrequent cycle
> 38 days
prolonged bleeding in days
> 8 days













