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Kick

From Biology-Online Dictionary | Biology-Online Dictionary
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Kick

a brisk mechanical stimulus.

atrial kick, the priming force contributed by atrial contraction immediately before ventricular systole to increase the efficiency of ventricular ejection due to increased preload.

idioventricular kick, the increased contractility of the initially contracting ventricular fibres which, by stretching the later contracting fibres, increases their force of contraction.