A neurotransmitter binds to a receptor site and the ultimate effect is a voltage shift in a negative direction. When this occurs, the probability:
A) that the receiving neuron will fire increases.
B) of an excitatory response increases.
C) that the receiving neuron will fire decreases.
D) that the neurons are densely connected decreases.

Question

Quizplus · Accepted Answer

A voltage shift in a negative direction is called hyperpolarization, which means the neuron's membrane potential becomes more negative, making it harder to generate an action potential. Thus, the probability that the receiving neuron will fire decreases.

A Neurotransmitter Binds to a Receptor Site and the Ultimate