A change in a neuron membrane potential from +millivolts to -millivolts is considered
A change in a neuron membrane potential from +millivolts to -millivolts is considered Correct Answer repolarization
B A voltage change from +50 to -70 is called repolarization. You can eliminate because a voltage change from -70 to +50 is called depolarization. Choice (C) is incorrect; a voltage change from -70 to -90 is called hyperpolarization. Choice (D) can be eliminated as well; an action potential is a traveling depolarized wave. It refers to the whole thing, from depolarization, repolarization, hyper-polarization, and back to a resting potential.
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Feb 20, 2025