An Action Potential Occurs When

question 468

Multiple Choice

An action potential occurs when:

• A) sodium ions enter the axon's interior, causing a brief positive electrical impulse.
• B) potassium ions are electrically transformed into sodium ions.
• C) polarized dendrites stimulate adjoining nodes of Ranvier.
• D) potassium ions enter the dendrites and sodium ions exit the axon, causing depolarization and a brief negative electrical charge.

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