Objecetive To study the alterations in neuronal membrane potential (MP) and the induced action potential (AP) in cerebellar granule neurons in brain sections of aged mice.

目的研究正常衰老小鼠小脑颗粒细胞膜膜电位及诱发动作电位的变化情况。

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Now, what happens during an action potential is that that membrane potential changes very rapidly and it changes from being negative to being more positive.

在动作电位产生时,膜电位迅速改变,从较负的电位向更正的电位改变

耶鲁公开课 - 生物医学工程探索课程节选

This process, which is shown schematically here, as a vesicle fusing with the cell membrane and then dropping its neurotransmitter only happens when an action potential reaches the end of the axon.

这一过程 扼要地展示在这里,小泡同细胞膜融合,释放其神经递质,这只发生在动作电位抵达轴突末梢时

耶鲁公开课 - 生物医学工程探索课程节选

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

耶鲁公开课 - 生物医学工程探索课程节选