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 identical action potentials.
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 great enough to bring the membrane to threshold will produce an identical action potential. In other words, there is no partial response - either the action potential fires, or it doesn't, regardless of the size or strength of the stimulus.

The All-Or-None Principle States That