What Causes the Refractory Period of a Neuron

question 173

Multiple Choice

What causes the refractory period of a neuron?

• A) Excessive sodium flows out of the neuron after it fires.
• B) Excessive sodium enters the neuron after it fires.
• C) Excessive potassium enters the neuron after it fires.
• D) Excessive potassium flows out of the neuron after it fires.

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