The magnitude of an action potential ____ as it is propagated down an excitable membrane due to the ____ principle.
A) increases; all-or-nothing
B) remains constant; all-or-nothing
C) increases; threshold
D) remains constant; threshold

Question

Quizplus · Accepted Answer

The magnitude of an action potential remains constant as it is propagated down an excitable membrane due to the all-or-nothing principle. Once an action potential is initiated and reaches the threshold, it will propagate without decreasing in magnitude.

The Magnitude of an Action Potential ____ as It Is