R.NCS.T. Exam Practice Questions - Registered Nerve Conduction Studies Technologist (R.NCS.T.) Exam

The 'all-or-none' principle of an action potential means that once threshold is reached:

The amplitude of the action potential varies in proportion to stimulus strength A full-amplitude action potential is generated regardless of how far above threshold the stimulus is Only sensory axons depolarize Repolarization is prevented

Correct Answer:

A full-amplitude action potential is generated regardless of how far above threshold the stimulus is

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