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我们都知道,胎儿通过脐带从妈妈那里获得氧气和营养成分,在妈妈精心准备的“无菌室”——子宫内快乐成长。遗憾的是,在妈妈体内享受保护的逍遥日子只有短短的几个月。从呱呱坠地的那一刻开始,婴儿就脱离了妈妈的庇护,不得不靠自己的力量独立生存。出生前,胎儿无忧无虑地飘浮在妈妈的羊水中,其肺部充满了液体。出生后,婴儿是如何排出肺内液体,完成从“液体肺”到“气体肺”的转变,实现第一口呼吸的呢?又如何迅速地具备了抵御外界各种细菌和病菌的能力呢?
We all know that fetuses get oxygen and nutrients from their mum through the umbilical cord, and grow up happily in their well-prepared “sterile room”. Unfortunately, there are only a few months of happy days of enjoying protection in the mother’s body. From the moment of birth, the baby leaves her asylum and has to live independently on her own. Before birth, the fetus floating carefree floating in the mother’s amniotic fluid, the lungs filled with liquid. After birth, the baby is how to discharge the fluid in the lungs to complete the transition from “liquid lung ” to “gas lung ”, to achieve the first breath? How to quickly have a variety of bacteria and pathogens against the outside world Ability?