If a neuron receives a series of stimuli whose effect is excitatory but subthreshold, the neuron is more excitable to incoming stimulation than before and is said to be
A) graded.
B) amplified.
C) facilitated.
D) refractory.

Question

Quizplus · Accepted Answer

If a neuron receives a series of subthreshold excitatory stimuli, it may become facilitated, meaning it will require less stimulation to reach its threshold for firing action potentials. This is due to the fact that the subthreshold stimuli cause a buildup of excitatory neurotransmitters in the synaptic cleft and a decrease in the activation threshold for voltage-gated ion channels.

If a Neuron Receives a Series of Stimuli Whose Effect