Recent Examples on the WebNext, the acrosome, a vesicle inside the sperm cell’s head, fuses with the outer layer of the egg, igniting the release of enzymes that ease the route inside.
Randi Hutter Epstein, New York Times, 17 Apr. 2020 This study will also be the closest off-planet look at the acrosome, which develops inside the head and acts like an organ.
Joe Pappalardo, Popular Mechanics, 16 July 2018
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