Which of the following is/are needed to initiate an action potential?
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one excitatory postsynaptic potential of threshold magnitude; |
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more than one excitatory postsynaptic potential; |
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enough excitatory postsynaptic potentials to reach the excitation threshold; |
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b and c are correct alternatives; |
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none of the alternatives is correct; |
INCORRECT - Since EPSPs are subthreshold in magnitude, more than one is needed to trigger an action potential.
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