Summation of Postsynaptic Potentials Determines Whether or Not an Action

question 28

Multiple Choice

Summation of postsynaptic potentials determines whether or not an action potential will be generated at the axon hillock. The final amplitude of the summed potentials is dependent upon

• A) distance the post-synaptic potential has traveled
• B) the polarity of the potential (epsp or ipsp)
• C) the timing of the potential (did they arrive close enough together to be summed)
• D) All of the choices will affect the final amplitude.

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