Exocytosis of Neurotransmitter into the Synaptic Cleft Is Triggered by an Influx

question 86

Multiple Choice

Exocytosis of neurotransmitter into the synaptic cleft is triggered by an influx of ______ in response to the arrival of an action potential in the axon terminal.

• A) K⁺
• B) Na⁺
• C) Ca²⁺
• D) ATP
• E) Cl^-

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Definitions:

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