n.顶体精子；精冒反应
Capacitation of acrosome; Process of pregnancy. 精子获能;妊娠的过程。
The nuclear cup was positive and acrosome PAS positive. 细胞化学反应显示，核杯为Feulgen阳性，顶体为PAS阳性。
Some of the damage sperms lost the acrosome, midpiece and flagellum. 线粒体内嵴弥散，线粒体脱落；
Proacrosomal vesicle formed and gradually developed into an acrosome. 精细胞时期顶体颗粒形成，线粒体明显的融合成一巨型线粒体。
In the sea ucrhin eggs, sperm acrosome reaction stirred up the eggs week in a polysaccharide film material. 在海胆卵上，激起精子顶体反应的是卵周胶膜中的某种多糖物质。
