While recording from a neuron, Dr. Chin noted that the neuron fired more rapidly as stimulus intensity was increased. But suddenly, the neuron would not fire any faster no matter how much the intensity was increased. What happened?
A)The neuron had failed to start reuptake.
B)The neuron was limited by the absolute refractory period.
C)The neuron was limited by the relative refractory period.
D)The synaptic vesicles began to use GABA.
E)Stimulus habituation.

Question

Quizplus · Accepted Answer

The neuron was limited by the absolute refractory period, which is a time during which a second action potential cannot be initiated, regardless of the strength of the stimulus. This period ensures a brief recovery phase between signals, allowing the neuron to reset.

While Recording from a Neuron, Dr