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胎儿多少周脑发育完
更新时间: 2020-11-04 00:00:00  

一般来说,胎儿大脑的发育从卵子受精后,大约4周左右就已经开始了,到了怀孕第8周左右时,胎儿已经具备了基本的雏形。这时候已经是从胚胎转变成为胎儿了。所以在怀孕第8周左右时,也是一个大脑具备基本雏形的时间段。

孕期第20周左右时,是胎儿的视觉,听觉等神经系统发育的阶段,而且脑细胞的发育也会变得越来越复杂,而且这个时期也是胎动出现的时期。所以这个时期妈妈可以给予他适当的胎教,能有效促进胎儿的大脑发育。

关键词: 胎儿 多少 发育

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