What Keeps an Action Potential Continuing Down an Axon

question 187

Multiple Choice

What keeps an action potential continuing down an axon?

• A)At each successive segment of the axon, the action potential is regenerated by depolarization and the movement of ions across the axon's membrane.
• B)Neurotransmitters are constantly being released to generate the action potential at each successive segment of the axon.
• C)Action potentials are conducted down the axon just as electricity is conducted through a wire.
• D)Ion channels open and close at the nodes of Ranvier, allowing neurotransmitters to enter into the axon and regenerate an action potential at each node.

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