Item #10 of 10

Which of the following is/are needed to initiate an action potential?

one excitatory postsynaptic potential of threshold magnitude;
more than one excitatory postsynaptic potential;
enough excitatory postsynaptic potentials to reach the excitation threshold;
b and c are correct alternatives;
none of the alternatives is correct;

CORRECT - Yes, more than one EPSP is needed to reach the threshold of excitation and trigger an action potential.

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