Meet the neuron. Voltage gradients and concentration gradients, resting membrane potential, depolarization and hyperpolarization... all explained here! Plus, explanations of refractory periods and how the axon overcomes the loss of signal strength over distance. WOW there's a lot here! For more study tips, stories, penguins and more, visit the Penguin Prof Facebook Page: http://www.facebook.com/ThePenguinProf And did you know that penguins TWEET? Follow Penguin Prof on Twitter: http://twitter.com/#!/penguinprof
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