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1、脐带是胎儿的生命线,不是玩具.孕12周左右羊膜将尿囊、尿囊血管、卵黄囊及其周围的胚外中胚层、血管包裹形成脐带.2、正常长度:30-100CM,平均长度55CM.3、2条脐动脉,1条脐静脉.4、脐带承载着各种母体与胎儿之间的功能.华通胶,螺旋.
脐带问题(绕颈、脱垂)--产前监测与产时处理
【摘 要】
：
1、脐带是胎儿的生命线,不是玩具.孕12周左右羊膜将尿囊、尿囊血管、卵黄囊及其周围的胚外中胚层、血管包裹形成脐带.2、正常长度:30-100CM,平均长度55CM.3、2条脐动脉,1条脐静脉.4、脐带承载着各种母体与胎儿之间的功能.华通胶,螺旋.
【机 构】
：
海南医学院附属医院妇产科
【出 处】
：
中山母胎监护论坛暨第七届单、双胎妊娠胎儿安全性评估与监护新进展研讨会
【发表日期】
：
2015年4期
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