What causes hyperpolarization in an action potential? closing of the voltage gated potassium channels opening of the voltage gated potassium channels closing of the voltage gated potassium channels for longer than needed opening of the voltage gated potassium channels for longer than needed None of the above
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Consider fast acting voltage-gated potassium channels that inactivate and slow acting voltage-gated sodium channels that do not. These channels have equal threshold levels and also open in hyperpolarization conditions. What would happen to the membrane potential during action potentials when the potassium channels open and close?
Madhur L.
An action potential occurs when _____ . a. a neuron reaches threshold potential b. gated sodium channels close c. sodium-potassium pumps stop working d. gated potassium channels open
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