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Why does the type of neurotransmitter matter? If the neurotransmitter just stimulates a dendrite on a neuron which causes electricity to move through via sodium-pottasium pumps and ion gates to eventually release more neurotransmitters... what's the difference? It's just electrical potential so how would the process change depending on the type of transmitter?

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Different neurotransmitter will stimulate different receptors leading to different results. –  biogirl Nov 10 '13 at 18:11
    
Neurotrasmitters can also inhibit neurons, and they have a various range of actions depending on their receptors. –  nico Nov 10 '13 at 18:37

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