When Two Excitatory Postsynaptic Potentials (EPSPs) Occur at a Single

Multiple Choice

When two excitatory postsynaptic potentials (EPSPs) occur at a single synapse so rapidly in succession that the postsynaptic neuron's membrane potential has not returned to the resting potential before the second EPSP arrives, the EPSPs add together, producing ________.

A) summation
B) inhibition
C) tetanus
D) the refractory state
E) an action potential with an abnormally high peak of depolarization