What Happens When an Action Potential Arrives at an Axon

question 19

Multiple Choice

What happens when an action potential arrives at an axon terminal?​

• A) ​Membrane voltages stimulate the axon.
• B) ​The action potential starts a chain reaction.
• C) ​A neurotransmitter builds up so it can be used again.
• D) ​The action potential causes an influx of phosphorous ions.
• E) ​Chemicals relay the message at a synapse.

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