The Action Potential

Item #8 of 10

Action potentials ______________

occur in response to the opening of sodium channels and the flow of sodium into the neuron;

last for approximately 2 milliseconds;

are local in nature;

result from depolarization or a reversal of the resting membrane potential followed by a resolving repolarization of the membrane;

all of the alternatives provided are correct;

CORRECT - Yes, action potentials are massive, local, and brief reversals of the resting membrane polarity caused by the influx of sodium ions.

[Review Part 1 of the tutorial] [Review Part 2 (Matching) of the tutorial]


		occur in response to the opening of sodium channels and the flow of sodium into the neuron;
		last for approximately 2 milliseconds;
		are local in nature;
		result from depolarization or a reversal of the resting membrane potential followed by a resolving repolarization of the membrane;
		all of the alternatives provided are correct;