In front, the long thin cellular protrusion of the neuron extends, pauses, then drags the bulbous cell body behind it, then extends again, and so on.

前端，又细又长的神经元伸展的细胞突出停止，然后拖动后边的球状细胞，然后再次伸展，如此反复。

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Cajal examined nervous tissue from embryos, and noticed that the axon and dendrites grow out of the cell body of the neuron.

卡哈尔在用胚胎观察神经组织时，发现轴突和树突是从胞体上生出的。

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This led Cajal to formulate the law of dynamic polarization, according to which information flows in one direction through a neuron, from the dendrites, through the cell body, to the axon.

这导致了卡哈尔建立他的动态极化法则，这个法则表明，信息在神经元上是单向传递，从树突，经过胞体，到达轴突。

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