In order to signal a stronger stimulus, action potentials become
A) higher in amplitude only.
B) more frequent only.
C) longer-lasting only.
D) higher in amplitude and more frequent.
E) higher in amplitude and longer-lasting.

Question

Quizplus · Accepted Answer

Action potentials do not vary in amplitude or duration due to the all-or-none principle; instead, a stronger stimulus is signaled by increasing the frequency of action potentials.

In Order to Signal a Stronger Stimulus, Action Potentials Become