excitation wave


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ex·ci·ta·tion wave

a wave of altered electrical conditions that is propagated along a muscle fiber preparatory to its contraction.

ex·ci·ta·tion wave

(ek'sī-tā'shŭn wāv)
A wave of altered electrical conditions that is propagated along a muscle fiber preparatory to its contraction.

excitation wave

The wave of irritability originating in the sinoatrial node that sweeps over the conducting tissue of the heart and induces contraction of the atria and ventricles.
See also: wave