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怀孕后多少天胎儿长人形
更新时间: 2020-11-04 00:00:00  

在怀孕四周末的时候可辨认出胎盘,8周末的时候胚胎初具人形,头大,占整个胎体的近一半,能分辨出眼、耳、鼻、口、手指以及脚趾头,各个器官正在分化、发育,心脏已经形成。到12周末的时候身长约9cm,顶臀径长6-7cm,外生殖器可初步辨别性别,四肢可以活动,11周以后才是胎儿,84天左右就初具人形了。

关键词: 怀孕 多少 胎儿 人形

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