Lecture 11- Reproductive system Flashcards
Gonadotropin is secreted by what?
hypothalamus
As follicle grows, the levels of estrogen gradually….
increase
what causes a surge in LH production?
high levels of estrogen
is the surge in LH production positive of negative feedback?
positive
what do follicles do ?
-nourish and protect developing egg/ovum
-produce estrogen
what is the site of fertilization?
Fallopian tubes
where does the embryo develop in?
uterus
what connects the uterus with the vagina?
cervix
where do eggs/ovum mature in?
in ovaries
what is estradiol?
the primary estrogen in females
what does a surge in LH causes?
causes follicle to rupture and expel secondary oocyte into fallopian tubes
what happens to corpus luteum if there’s a lack of estrogen and progesterone ?
no estrogen or progesterone to maintain endometrium= corpus luteum degenerates and it is shed.
what inhibits both FSH and LH?
low levels of estrogen
Where is estrogen produced from?
follicles and corpus luteum.
why is the scrotum outside the abdominal cavity?
to lower temperature since necessary for sperm production
