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It sends it's signal, it's signal - the signal that it sends is this change in voltage, and once it changes, maybe it's all done.
它发出信号,它通过电压的改变发出信号,然而一旦电压改变,细胞的使命到此就终结了
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There's a local change in the membrane, that local change involves opening of channels that allow ions to pass through regions where they couldn't pass through before, that results in a change in voltage.
膜上会发生局部变化,局部变化包括离子通道开启,使离子通过,先前不能通过的区域,从而引起电压的变化
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If there were no voltage on the plates, we would expect everything to be over here in some negative value falling.
如果板子上没有速度，这些可能都在这,都是负值下降的。
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He had a tube with electrodes potted in it filled with atomic hydrogen. And by applying a voltage, he was able to get the gas to glow.
那是个装满了氢原子并含有电极的管子,通过增加一个电压，他让气体燃烧起来了。
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That change happens because something gets triggered in the membrane, and what gets triggered is a voltage gated sodium channel, which is shown here.
变化的原因是膜上某些东西被触发了,被触发的是钠离子电压门控通道,展示在这儿了
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He reasoned then that the charge, since he could vary voltage continuously but got a discontinuous variation in velocity, his conclusion was that the charge must be discontinuously attached to the droplet.
他推断出电荷，因为他可以不断地改变电压,但是得出了速度是在不连续变化着，他的结论是电荷,是间断地依附于液滴上的。
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That results in a dramatic change in the membrane voltage; the potential across the membrane and that's shown here by this rapid rise in membrane potential.
变化导致了膜电压的剧烈变化,膜电压就是跨膜的电势差,表现为膜电位的迅速上升
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That happens, and if I was looking at a region of membrane that was experiencing an action potential I would see voltage change in just the way it's shown in this graph here.
当去极化发生时,如果我观察一个经历动作电位的区域,我就会看到这样的电压变化,就像这幅图上展示的一样
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Now, remember we talked about these last time, voltage-gated channels are channels that would allow the passage of sodium, in this case, but they can exist in two states, a closed state and an open state.
还记得我们上节课讨论过的吧,电压门控通道是,一种可以容许钠离子通过的通道,在这一例子中 电压门控通道有两种状态,关闭状态和开放状态
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