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How does a neuron first fire an action potential?A) local potentials are summed to repolarize the membrane to threshold value at the dendritesB) local potentials are summed to depolarize the membrane to threshold value at the dendritesC) local potentials are summed to repolarize the membrane to threshold value at the cell bodyD) local potentials are summed to depolarize the membrane to threshold value at the trigger zone of the axon
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