This part of the cell becomes depolarized because it gets the message that it's supposed to depolarize because of all the inputs that impinge on these dendrites.

这一部分细胞会去极化,因为它得到了,树突上接受到的神经冲动所传达的,要求它去极化的信息

耶鲁公开课 - 生物医学工程探索课程节选

These are so-called homo-polar molecules.

这就是所谓的均匀极化的分子。

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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

耶鲁公开课 - 生物医学工程探索课程节选