Which of the following statements is true with respect to an axon's ability to fire immediately following an action potential?
A) The axon cannot fire during the absolute refractory period. It can fire during the relative refractory period no matter how strong the stimulus is.
B) The axon cannot fire during either the absolute or the relative refractory period.
C) The axon can fire during either the absolute or the relative refractory period no matter how strong the stimulus is.
D) The axon cannot fire during the absolute refractory period. It can fire during the relative refractory period given a strong enough stimulus.

Question

Quizplus · Accepted Answer

During the absolute refractory period, the axon is unable to fire regardless of the strength of the stimulus. However, during the relative refractory period, the axon can fire if the stimulus is strong enough to overcome the increased threshold. Therefore, option D is the correct statement.

Which of the Following Statements Is True with Respect to an Axon's