天气预报 > 其他 > 早孕6周胚芽长多少正常
早孕6周胚芽长多少正常
更新时间: 2020-11-05 00:00:00  

怀孕6到7周,胎芽大约在0.5cm左右,一般八周会出现胎心搏动。

胎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胎芽期。

关键词: 多少 正常

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