Acrosome reaction

Acrosome reaction
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Acrosome reaction
During fertilization, sperm must first fuse and then penetrate the female egg in order to fertilize it. Fusing to the egg usually causes little problem whereas penetrating through the egg's hard shell can present more of a...

Acrosome Reaction and Penetration of the Oocyte Membrane
Acrosome reaction
Contact of jelly coat and sperm
Triggers Ca2+ to enter membrane of sperm
Causes acrosome to burst / releases enzymes / digest jelly coat ...

change in mammalian sperm that occurs after exposure to female genital tract making the sperm competent to undergo the acrosome reaction; this change is necessary for penetration of the cumulus matrix and for fertilization.

See also: Sperm, Acrosome, Action, Membrane, Fertilization