\n\n
在另外一种情况下,如果排出的卵子在输卵管与精子相遇,精子会刺破卵子表面的透明屏障进入卵子,从而形成受精卵。受精卵会一边重复进行细胞分裂,一边朝着子宫方向移动。经过 4~5 天抵达子宫后,会在子宫内膜的一处停留,这就是着床,表示怀孕成功。
\n\n在子宫内膜着床成功后,为了给受精卵输送营养,便形成胎盘,受精卵会渐渐成长成胎儿。待受精卵发育成熟后,一个新生命便降生了。这便是子宫的另一个、也更为神圣的生理作用——孕育生命。
\n\n 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