reproductive hormones Flashcards
menstrual cycle 2 phases
follicular - pre ovulation
luteal - post ovulation
average cycle time
28 days
FSH
follicle stimulating hormone
-seen in follicular phase
what is FSH produced by
pituitary gland
main function of FSH
stimulate ovaries to produce eggs
only time to looks at FSH
if women has trouble getting pregnant or going into perimenopause, or menopause
-these levels will increase when entering these phases
in men FSH helps in
production of sperm
in children FSH
adds in development of all sexual features
from day 1 period to right before ovulation FSH
at steady low
-will increase right before ovulation
-will cause 1 follicle to become dominant during this stage
after ovulation FSH will
decrease and go to normal levels until next menstrual cycle
decrease levels of FSH associated with
-PCOS
-pituitary dysfunction
-decreased levels in men associated with decrease sperm counts
increase levels of FSH seen right before ovulation
goes up and down
increase levels of FSH at perimenopausal and menopausal stages
goes and stays up
no period for a year considered
menopausal
LH stands for
luteinizing hormone
LH released by
pituitary gland
when does LH increase
increase along with FSH so follicular stage
main function of LH
release egg during ovulation
If fertilization occurs LH will tell stimulate
corpus luteum to produce progesterone
in men LH stimulates production of
testerone
if no fertilization LH will
decrease
when progesterone seen after
ovulation
progesterone main function
prepare uterus for implantation and maintenance of a pregnancy
decreases in progesterone is main reason for
early miscarriage