The brief pause in activity after a neuron has fired is known as
A) reuptake.
B) depolarization.
C) an all-or-none response.
D) a refractory period.

Question

Quizplus · Accepted Answer

The brief pause in activity after a neuron has fired is known as the refractory period. During this time, the neuron is unable to fire again, regardless of the intensity of incoming signals. This period allows for the restoration of the neuron's resting potential before it can fire again. Reuptake is the process by which neurotransmitters are reabsorbed into the presynaptic neuron after being released into the synaptic cleft. Depolarization is the process by which the electrical charge inside the neuron becomes more positive, which can lead to firing. An all-or-none response refers to the fact that a neuron either fires with full strength or not at all, depending on the strength of the incoming signals.

The Brief Pause in Activity After a Neuron Has Fired