Which of the following statements about synaptic vesicle release is true in the context of quantal neurotransmitter release?
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Correct answer: Each vesicle fusion releases a discrete quantum of neurotransmitter.
Quantal release refers to the idea that neurotransmitters are released in discrete packets (quanta), each packet corresponding to a vesicle; each quantum produces a measurable postsynaptic potential such as a miniature end-plate potential (MEPP).
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