Shared Flashcard Set

Details

Biosystems II
Conception/Fertilization
9
Biology
Graduate
02/15/2012

Additional Biology Flashcards

 


 

Cards

Term
secondary oocyte viable for
Definition
12 to 24 hours after ovulation
Term
sperm is viable
Definition
24 to 48 hours after ejaculation
Term
capacitation process
Definition
-8-10 hours
-increases motility
-weakening of acrosomal membrane
Term
sperm makes its way to secondary oocyte via
Definition
olfactory receptors
Term
hyalurondinase
Definition
digest extracullular matrix between corona radiata cells
Term
acrosomal reaction
Definition
-binding to zona pellucida causes rise in intracellular Ca
-enzymes released from acrosome to digest ZP
Term
acrosomal process
Definition
actin filaments
Term
upon entry of sperm
Definition
-Ca surge from ER causes cortical reaction
-cortical granules inside oocyte membrane release enzymes (ZIPS) that destroy receptors (slow)
-spilled fluid binds water and swells, detaching other sperm (fast)
Term
Ca surge from sperm triggers
Definition
-completion of meiosis II
-producing ovum and second polar body
-pronuclei form and rupture to combine chromosomes
-mitotic division begins
Supporting users have an ad free experience!