A nerve impulse does not vary in intensity with regard to the strength of the stimulus. What do we call this phenomenon?
A) resting membrane potential
B) refractory period
C) all-or-nothing principle
D) graded response

Question

Quizplus · Accepted Answer

The all-or-nothing principle states that once the threshold for depolarization is reached, a nerve impulse will fire at full strength regardless of the strength of the stimulus. This principle describes the phenomenon that a nerve impulse does not vary in intensity with the strength of the stimulus.

A Nerve Impulse Does Not Vary in Intensity with Regard