Which Sequence Presents Presynaptic Events in the Correct Chronological Order

question 55

Multiple Choice

Which sequence presents presynaptic events in the correct chronological order?

• A) Calcium ion influx  action potential reaches axon terminal  vesicle fuses with membrane  diffusion of neurotransmitter
• B) Exocytosis  calcium ion influx  action potential reaches axon terminal  membrane depolarization
• C) Action potential reaches axon terminal  calcium ion channels open  exocytosis  diffusion of neurotransmitter
• D) Action potential reaches axon terminal  calcium ion channels open  neurotransmitter diffusion  exocytosis

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