The purpose of the heart valves is:

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    Keeping the blood flow from the atria to the ventricles
    Keeping blood flow in a backward direction
    Keeping blood flow to the vessels constant
    Keeping the blood flow from the ventricles to the atria
asked Jun 17, 2012 in Anatomy & Physiology by anonymous
    

1 Answer

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Keeping the blood flow from the atria to the ventricles
answered Jun 17, 2012 by Bioshare ~Top Expert~ (34,070 points)

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