Fertilization and Pregnancy Flashcards
Through intercourse – ___________ million sperm enter the
vagina
15-200 million
Movement of sperm is mainly facilitated by
cervical mucus and movement of fimbriae and cilia
when can the sperm and egg meet after intercourse?
anywhere from minutes to days
About _______ sperm get to egg
100
fertilization takes place in the _____
fellopian tube
Capacitation
1st stage of fertilization
removal of sperm’s acrosomal coat (done
by secretions from uterus)
acrosomal
2nd stage of fertilization
reaction – enter the egg
Fertilization
3rd stage of fertilization
egg membrane engulfs sperm
Zona
4th stage of fertilization
reaction – surface of egg changes to
prevent entrance of other sperm
how much time needs to pass of trying to concieve before considere infertile?
under 35 - 1 year
pver 35 - 6 months
IVF
reaction – surface of egg changes to
prevent entrance of other sperm
Involves egg retrieval (often after cultivation),
sperm retrieval, preparation, incubation, and
embryo transfer
During Invitro _____analogs indirectly increas _____
GnRH
FSH/LH
during IVF Mature eggs are harvested from the ______
oviducts
HCG
helps prime uterine cavity for
developing