Action Potentials

question 224

Multiple Choice

Action potentials

• A) initially cause depolarization of the membrane, usually followed by hyperpolarization.
• B) cause a return to resting potential when the sodium channels open.
• C) can be triggered in rapid succession, with no measurable delay between spikes.
• D) are initiated by the membrane's increased permeability to potassium.
• E) result from inactivation of leak channels.

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