It varies in its structure among cells of the nervous system but all synapses have some properties in common.
突触结构因神经系统细胞不同而不同,但突触都有某些共同属性
The synapse is just this anatomical region of contact between two adjacent cells in the nervous system.
突触是解剖学上,神经系统相邻两细胞的连接区域
This infinitesimal gap-- and this gap is known as a synapse-- and what happens is when a neuron fires, an axon sends chemicals shooting through the gap.
这个极小的缝隙,这个缝隙就叫做突触,当神经元产生神经冲动后,轴突会释放出能够穿透缝隙的化学物质
Even if tomorrow someone were to hand doctors a magic new technology that would enable to control neurons and synapses with whatever precision they want safely inexpensively.
就算明天有人交给医生一项神奇的新技术,让他能安全,随心所欲地控制神经元和神经突触。
In some cells they're recycled, that is the cell is able to take up the neurotransmitter after it's released and restore it, but most often there are enzyme systems inside the pre-synaptic membrane where those neurotransmitters are synthesized.
在一些细胞中神经递质可以循环利用,这些细胞可以吸收,已经释放出的神经递质并重新储存起来,但更常见的是突触前膜中含有酶系统,在此合成神经递质
Those doctors would still not be able to improve school performance of the kids with learning disabilities and they would still not be able to prevent cognitive impairment and loss of memory in older adults because at this point we don't really understand enough about learning To know which neurons and synapses within a circuit would need to be tinkered with.
他恐怕还是改变不了有学习障碍的孩子们的表现,阻挡不了老年人的认知功能损害和记忆力的衰退,因为我们对这一学科的确知之甚少,不知道知道回路中的到底是哪些神经元和神经突触需要修复。
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