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自从1951年发现哺乳动物精子获能过程是雌性生殖道中配子最后成熟的标志以来,从而证实赋于一定量的精子才具有穿透能力。沉积在输卵管受精部位的排出的精子或附睾尾部精子是不能穿透和激活卵子,测定这段时间通常需要按小时计算。初步认为获能精子脱离精浆接触后重新悬浮于子宫和输卵管液中并改变代谢活性,估计还有较微妙的细胞变化,直到70年代才弄清楚。总的来说,每一种属的获能都需有时间间隔特性。
Since the discovery of mammalian sperm capacitation in 1951 as a sign of the eventual maturation of gametes in the female reproductive tract, it has been demonstrated that penetration of a given amount of sperm is permissible. Deposition of sperm in the fallopian tube fertilization site or sperm tail of the epididymis can not penetrate and activate the egg, the determination of this period of time usually need to be calculated on an hourly basis. Initially that the sperm can be re-suspended after contact with seminal plasma in the uterus and fallopian tube fluid and change the metabolic activity, it is estimated there are more subtle cell changes until the 70s to figure out. In general, each genus needs to have time-lapse features.