If a neuron will not fire regardless of the amount of stimulation, it is most likely ____________?

Correct answer: B. in its absolute refractory period

A. at its resting potential
B. in its absolute refractory period
C. an afferent neuron
D. in its relative refractory period

Explanation

The absolute refractory period is the brief interval after an action potential when voltage-gated sodium channels cannot be reactivated, so no stimulus can produce another impulse. During the relative refractory period, an unusually strong stimulus can still trigger firing.

Written and checked by Zahid Hussain, editorLast updated 16 September 2026

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