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Action potential

Action Potential: A rapid change in voltage of a cell membrane, briefly reversing the electrical polarity.
  • An action potential has a self-propagating effect, creating a wave depolarization along the entire length of the cell, in both muscle and nerve cells.
  1. Saladin, K. (2012). Anatomy & Physiology: The unity of form and function. (6th ed.). New York: McGraw-Hill.