Excitatory postsynaptic potentials (EPSPs) occurring at multiple synapses on the same postsynaptic neuron can add together through ________.
A) temporal summation
B) spatial summation
C) highly branched dendrites
D) the generation of substance P

Question

Quizplus · Accepted Answer

Spatial summation occurs when excitatory postsynaptic potentials (EPSPs) from multiple synapses on the same neuron add together. This is because the simultaneous activation of multiple synapses can collectively bring the postsynaptic neuron closer to the threshold for firing an action potential.

Excitatory Postsynaptic Potentials (EPSPs) Occurring at Multiple Synapses on the Same