When Several Excitatory Postsynaptic Potentials (EPSPs) Arrive at the Axon

question 28

Multiple Choice

When several excitatory postsynaptic potentials (EPSPs) arrive at the axon hillock from different dendritic locations and then depolarize the postsynaptic cell to threshold for an action potential, this is an example of

• A) temporal summation.
• B) spatial summation.
• C) a normal action potential.
• D) an action potential with an abnormally high peak of depolarization.

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