Science, asked by vivekbhardwaj8742, 9 months ago

Time needed for atrial contration

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Answered by Anonymous

8

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The cardiac cycle comprises a complete relaxation and contraction of both the atria and ventricles, and lasts approximately 0.8 seconds. Beginning with all chambers in diastole, blood flows passively from the veins into the atria and past the atrioventricular valves into the ventricles.

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Answered by ItzStrawBerry

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