Lecture 30 Flashcards
Fertilization
BSPs
Bovine seminal plasma proteins on sperm that bind to sperm(impacting motility, storage, and interaction with the oviduct) by stimulating cholesterol and phospholipid
Sustained transport phase
slow controlled release/ movement of sperm
Oolemma
cell membrane surrounding the oocyte
Signal Cascade pathway
promotes sperm viability and motility post-binding
Cortical reaction
calcium influx causing exocytosis of granules
Heparin
Induces capacitation in sperm from female tract
ARPR
acrosome reaction promoting region on sperm
Capacitation
sperm maturation process for fertilization (sperm changes to allow for oocyte binding)
IZUMO1
sperm protein facilitating membrane fusion
Sperm Loss
high rate of sperm mortality after ejaculation
Reservoir Formation
sperm storage in oviduct of some species
Sperm function alteration
changes in sperm due to uterine secretions
Polyspermy
fertilization by more than one sperm
equatorial segment
part of sperm that fuses with oocyte membrane
Perivitelline space
fluid-filled space between oocyte and zona pellucida
oviductal epithelium
site where sperm dock for storage
Sialomucin
low viscosity mucus in cervical crypts
hyperactivation
increased sperm motility for effective oocyte penetration
Annexin
protein on oviductal epithelium for sperm binding
CATsper
cation channels facilitating sperm motility
Syngamy
fusion of male and female pronuclei
Proacrosin
inactive enzyme with high affinity for ZP3
Sperm storage
ability of sperm to remain viable for days
Cumulus matrix
layer sperm must penetrate during fertilization
