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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another thing that you'd find if you looked inside the axon terminals of any of these pre-synaptic membranes, you'd find lots of vesicles or some membrane bound compartments that contain special chemicals called neurotransmitters.

如果你仔细观察,突触前膜的轴突末梢内部,你会发现很多小泡,即膜包被的结构,包含有称为神经递质的特殊化合物

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