Which of the Following Statements About Summation in the Nervous

question 76

Multiple Choice

Which of the following statements about summation in the nervous system is INCORRECT?

• A) Summation of signals in neuronal pathways allows integration of multiple subthreshold changes in local potential.
• B) Spatial summation occurs when local potentials originate from different locations on the posynaptic neuron.
• C) Spatial summation also occurs when local potentials overlap in time.
• D) Both spatial and temporal summation can lead to either inhibition or stimulation depending upon the signal type.
• E) A single presynaptic action potential usually does not cause a sufficiently large postsynaptic local potential to cause the postsynaptic cell to reach threshold.

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