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胎儿的脑神经系统从怀孕第五、六周就开始发展,直到第8周神经管愈合完成。也就是说,从胚胎着床后,神经细胞便开始分化,接着产生各种神经细胞移动与突触结合,在怀孕第8周时,神经管便渐次愈合,但整个神经系统的发育,会持续到孕期结束,甚至到宝宝出生后3年内,才会达到97%的成熟。神经系统是人体所有器官中,发展期最长同时也是最早就
Fetal brain system from the fifth and sixth week of pregnancy began to develop until the eighth week of neural tube healing is completed. In other words, from the embryo implantation, nerve cells began to differentiate, followed by a variety of nerve cell movement and synaptic integration in the first 8 weeks of pregnancy, neural tube gradually healed, but the development of the entire nervous system will continue By the end of pregnancy, and even to 3 years after birth, the baby will reach 97% of the mature. The nervous system is all organs of the body, the longest development is also the earliest