valves of the heart

  • Leaky Heart Valve: Symptoms, Causes, Treatments,

    A leaky heart valve may cause no problems or it may signify congestive heart failure. WebMD takes a look at the causes, symptoms, and treatments for a leaky heart valve.

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  • Heart valve Wikipedia

    A heart valve normally allows blood to flow in only one direction through the heart. The four valves commonly represented in a mammalian heart determine the pathway ...