Fig.2 Uncapacitated sperm,Both PM and A are degenerated.The iner acrosomal membrane(IAM) and the remains of out acrosomal membrane(OAM) are labeled intensively with gold particles(arrow).

• 图2顶体溃败的未获能精子，头部质膜和顶体已破坏，残留的顶体外膜(OAM)和顶体内膜(IAM)见密集的金标记颗粒(箭头，下同)。