action current
The flow of electric current between a region of excitation and neighboring unexcited regions.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • action current — noun : an electric current arising from a variation of potential occurring during activity in living tissue (as a muscle or nerve) * * * action current, a change of electric potential in the movement of nerve impulses along the fibers of a… …   Useful english dictionary

  • action current — the current generated in a cell membrane of a nerve or muscle by the action potential; it serves to depolarize adjacent membrane areas beyond the threshold, thus initiating a repetition of the action potential process along the nerve fiber.… …   Medical dictionary

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