A neuron can be pushed to threshold if many EPSPs arrive at the axon hillock at the same time, but from different locations across the cell body. This process is referred to as
A) active propagation.
B) spatial summation.
C) temporal summation.
D) threshold afterpotential.

Question

Quizplus · Accepted Answer

Spatial summation is the process by which EPSPs from different locations across the cell body combine and reach threshold at the axon hillock, leading to the firing of an action potential. Temporal summation, on the other hand, occurs when EPSPs from the same location arrive at the axon hillock in rapid succession, leading to the same result. Active propagation and threshold afterpotential are not related to this process.

A Neuron Can Be Pushed to Threshold If Many EPSPs