When an Action Potential Arrives at an Axon Terminal, It

question 21

Multiple Choice

When an action potential arrives at an axon terminal, it causes the opening of _______ channels, which triggers fusion of neurotransmitter vesicles with the cell membrane.

• A) calcium
• B) sodium
• C) potassium
• D) chloride
• E) acetylcholine

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Definitions:

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