So, that process happens fast but you also need this neurotransmitter release and activation to happen fast so that you can have rapid activity.
所以 电传递过程很快,但你仍需要神经递质的,快速释放和快速激活,以便使你快速活跃起来
And then if you get a certain number, plus 60 or something, the neuron will fire and it fires along the axon, the thing to the right.
如果达到了一定的数量,比如超过60之类的,神经元便会产生神经冲动,神经冲动沿轴突传递,右边的是轴突
Many neurotransmitters that carry signals between neurons in your brain work this way.
在脑部神经元细胞中,传递信号的神经递质分子的,作用原理就是如此
Now, how they carry signals is that these neurotransmitters act as ligands.
它们传递信号的原理如下,神经递质作为一种配体
There are sensory neurons, which take information from the world so as you see me, for instance, there are neurons firing from your retina sending signals to your brain.
感觉神经元,负责收集外界信息,比如,当你看到我的时候,视网膜上的神经元会产生神经冲动,将刺激信号传递到你的大脑
The nervous system does the same thing in a different way.
神经系统也传递信号,但原理有所不同
So action potentials are used by tissues in different ways to send signals from one cell to another or from one end of one cell to another end of the cell.
所以组织以不同的方式利用动作电位,将信号从一个细胞传递到另一个细胞,或从一个神经末梢到另一个神经末梢
One class of them is beta-blockers, they bind to beta-adrenergic receptors, which are receptors that exchange information between your nervous system and the contractile system that beats your heart and that causes the heartbeat.
一类药物是β阻断剂,它们与β肾上腺素受体结合,这种受体能够在神经系统和,控制心跳的心肌收缩系统之间传递信息,从而产生心跳
The cells that take an electrical signal, which is coming down your nerve and convert it into a muscle contraction work this way, so 'neuro' nerve, muscle junctions act based on ligand-gated ion channels.
依靠相同的工作原理,细胞将来自于神经的,电信号传递到细胞收缩肌中,所以神经和肌肉关节运动,都基于配体门控离子通道
The way that they communicate with each other is by physically touching each other, and the way that they connect across distances is by having these process that extend from one place to another.
它们通过物理接触,来交换信息,神经之所以能跨距离传递信息,就是靠细胞间互相延伸的突起
Well, the mechanism that the cell uses to transmit information along itself, along this process which goes from my brain to my fingers, for example, is through an electrical signal called an action potential.
神经细胞沿突起,将信息从我的大脑传递到,手指的机制是,举例来说,是通过一种称为动作电位的电信号的作用
It helps the firing work quicker.
使得神经冲动得以快速传递
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