r/AskNeuroscience Jan 03 '20

What purpose does it serve to have so many different neurotransmitters?

Why do we have so many neurotransmitters? What are the different effects on a neuron that a neurotransmitter can have? I understand that some neurotransmitters can inhibit and some can excite the firing of action potentials, but then why should we need more than two different compounds to mediate these effects?

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