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孕5月半羊水多少
更新时间: 2020-11-04 00:00:00  

孕5月半羊水大约在80毫米到200毫米之间,深度范围是在30毫米到80毫米之间。

羊水的来源、量和成分随孕周不同而有所变化。妊娠初期,羊水主要是母体血清通过胎盘进入羊膜腔的透析液,少量从胎盘表面和脐带表面渗出。

关键词: 羊水 多少

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