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胚芽正常是每天长多少正常
更新时间: 2020-11-05 00:00:00  

一般月经规律的孕妇,停经40天左右彩超结果可以看到胚芽,胚芽一般每天增长约2毫米。

胚芽是指在受精卵发育过程中,最初两周称为孕卵。以后各种器官逐渐形成,在孕8周以前的胚胎。妊娠三至妊娠第一个月四周称为胚芽期。

关键词: 正常 天长 多少

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