A neuron receives a series of stimuli that increases the membrane permeability of Na⁺, but not enough to cause membrane potential to surpass -55mV. This neuron is said to be
A)graded.
B)amplified.
C)facilitated.
D)refractory.

Question

Quizplus · Accepted Answer

When a neuron receives stimuli that increase the membrane permeability to Na⁺ without surpassing the threshold potential (-55mV), it is in a state of facilitation. This means it is more easily excited by subsequent stimuli, as it is closer to the threshold for generating an action potential.

A Neuron Receives a Series of Stimuli That Increases the Membrane