Neuronal Communication Is a Two-Step Process

question 76

Multiple Choice

Neuronal communication is a two-step process.In the second step,which takes place between two neurons,what does the arrival of an action potential at the axon terminal of the first neuron signal?

• A)The synthesis of neurotransmitters by specialized enzymes
• B)The uptake of neurotransmitters from the extracellular space
• C)The enzymatic breakdown of residual neurotransmitters
• D)The release of neurotransmitters into the extracellular fluid

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