If a neurotransmitter hyperpolarizes the postsynaptic membrane, the effect is
A)excitation
B)inhibition
C)to prevent reuptake
D)to open sodium channels
E)close potassium channels

Question

Quizplus · Accepted Answer

Hyperpolarization of the postsynaptic membrane makes the inside of the cell more negative compared to the outside, which moves the membrane potential further away from the threshold for generating an action potential, thus inhibiting the neuron's ability to fire. This is why the effect is considered inhibitory.

If a Neurotransmitter Hyperpolarizes the Postsynaptic Membrane, the Effect Is