Animation 2.8: Ion Movement and Voltages During the Neural ImpulseClick on the above link to access the Interactive eBook. Once you've signed in, scroll to page 27 and watch the video. When you've finished watching the video, come back to the test and answer the following questions:At what stage of the neural impulse do the potassium channels open?
A. when the neuron reaches complete depolarization
B. when the neuron returns to its resting state
C. before the neuron reaches threshold level
D. at the same time the sodium channels open
Answer: A
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