What are the three states of voltage gated sodium channels?
012 The Absolute and Relative Refractory Periods

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1.
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2.
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What happens to voltage gated sodium channels during depolarization?
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3.
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How does the membrane potential change during an action potential?
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4.
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Explain the concept of absolute refractory period.
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5.
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What role do potassium ions play during the repolarization phase?
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Why is a stronger stimulus required during the relative refractory period?
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Describe the process that leads to the relative refractory period.
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