By what mechanism do inhibitory neurotransmitters prevent

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Both excitatory and inhibitory neuron form junctions with muscles. By what mechanism do inhibitory neurotransmitters prevent the postsynaptic cell from firing an action potential?

a by closing Na+ channels
b. By preventing the secretion of excitatory neurotransmitters
c. By opening K+ channels
d. By opening Cl- channels

Reference no: EM13114482

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