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胎儿胼胝体多少周发育
更新时间: 2020-11-05 00:00:00  

胎儿胼胝体20周发育,胼胝体部分缺失时,先形成的部分存在,后形成的部分缺失。其胚胎形成先后顺序为膝部、体部、压部,最后是嘴部。这个过程至20周完成,故20周前不诊断胼胝体发育不良疾病。

关键词: 胎儿 多少 发育

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