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