Which of the Following Statements About Action Potentials Is TRUE

question 273

Multiple Choice

Which of the following statements about action potentials is TRUE?

• A) Partial action potentials result in fewer neurotransmitter molecules being released than whole action potentials.
• B) Action potentials operate under the all-or-none law, which means that action potentials either move all sodium ions across the membrane or none of the sodium ions across the membrane.
• C) Once an action potential is started, it is self-sustaining and continues to the end of the axon.
• D) Action potentials regenerate themselves during their refractory periods when the axon membrane is depolarized.

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