Where a stimulus is applied to the neuron, the polarity of the ions is disrupted at the same location. Thus, that location is said to be depolarized. The ions in adjacent areas along the neuron then attempt to restore the original polarity at the location of the stimulus. However, as repolarization occurs in the area of the stimulus, the adjacent areas themselves become depolarized. This results in a wavelike progression of depolarization/repolarization along the length of the neuron. By this means, information is transferred along the neuron.
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