The amount of neurotransmitter released during exocytosis is largely determined by the amount of calcium entering the presynaptic axon terminal.

Name: The amount of neurotransmitter released during exocytosis is largely determined by the amount of calcium entering the presynaptic axon terminal.
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Calcium ions trigger the release of neurotransmitters during exocytosis. The more calcium that enters the presynaptic axon terminal, the more neurotransmitter is released.

The Amount of Neurotransmitter Released During Exocytosis Is Largely Determined