The All-Or-None Principle States That

Question

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 magnitude of the action potential.
D) only sensory stimuli can activate action potentials.
E) only motor stimuli can activate action potentials.

Accepted Answer

The all-or-none principle states that all stimuli great enough to bring the membrane to threshold will produce identical action potentials. This means that an action potential either fires at full strength or not at all, regardless of the strength of the stimulus beyond the threshold level.