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怀孕多少天可以查出孕囊
更新时间: 2020-11-05 00:00:00  

怀孕35天以后,B超可看见小胎囊,胎囊约占宫腔不到1/4,或可见胎芽。

孕囊是原始的胎盘组织,被羊膜、血管网包裹的小胚胎。孕囊是怀孕最初的形态,那时候胎儿还没有形成,胎芽出现时已经有胎心跳动了。

关键词: 怀孕 多少 可以 查出

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