The all-or-none principle states that
A) all stimuli will produce identical action potentials.
B) all stimuli great enough to bring the membrane to threshold will produce action potentials of identical magnitude.
C) the greater the magnitude of the stimuli, the greater the intensity of the action potential.
D) only sensory stimuli can activate action potentials.
E) only motor stimuli can activate action potentials.

Question

Quizplus · Accepted Answer

The all-or-none principle states that any stimulus that is above a certain threshold will produce an action potential of the same magnitude. Therefore, only choice B accurately describes the principle. Choices A, C, D, and E are incorrect because they do not accurately reflect the all-or-none principle.

The All-Or-None Principle States That