The minimum change in a membrane's voltage that must occur to trigger an action potential is the _____.
A) threshold
B) minimum voltage
C) voltage potential
D) triggering voltage

Question

Quizplus · Accepted Answer

The threshold is the minimum change in voltage that must occur to trigger an action potential. Once the membrane potential reaches the threshold, an action potential will be fired. Therefore, choice A is the correct answer. Choices B, C, and D are not valid as they do not accurately describe the concept of threshold.

The Minimum Change in a Membrane's Voltage That Must Occur