Which of the following is an example of spatial summation?
A) Two action potentials occur at the same time and sum.
B) A neuron sends out information through collaterals to several target cells.
C) Two stimuli from two sources produce graded potentials on the same neuron at the same time such that the two potentials sum.
D) Two rapid stimuli from the same source produce graded potentials on the neurons that sum.
E) An action potential occurs at the same time as a graded potential, and they sum.

Question

Quizplus · Accepted Answer

Spatial summation occurs when two or more presynaptic neurons release neurotransmitters at various locations onto the postsynaptic neuron at the same time, causing the graded potentials to sum.

Which of the Following Is an Example of Spatial Summation