When a neurotransmitter molecule binds briefly with a receptor site, changes occur in the receiving neuron's charge. If there is a voltage shift in a positive direction, then the effect is:
A) a decreased probability that the receiving neuron will fire.
B) an excitatory effect.
C) an inhibitory effect.
D) a decreased probability that the neurons are densely connected.

Question

Quizplus · Accepted Answer

When there is a voltage shift in a positive direction, it means there is depolarization of the receiving neuron's membrane. This depolarization increases the likelihood that the neuron will fire, leading to an excitatory effect.

When a Neurotransmitter Molecule Binds Briefly with a Receptor Site