A Neurotransmitter Is Released at a Synapse

question 21

Multiple Choice

A neurotransmitter is released at a synapse. Which of the following occurs last?

• A) Calcium ions enter the presynaptic terminal.
• B) Synaptic vesicles release neurotransmitter by exocytosis.
• C) An action potential is produced in the postsynaptic membrane.
• D) Neurotransmitter flows rapidly across the synaptic cleft.
• E) Neurotransmitter binds with the receptor on the postsynaptic membrane.

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