Polampelli Anusha
Heart valve disease occurs when the heart valves do not work the way they work. Heart valve disorders can affect any of the valves in the heart. Heart valves are having flaps that close and open with each heartbeat, allowing blood to flow through the hearts upper and lower chambers and to the rest of your body. The upper chambers of the heart are known as atria, the lower chambers of the heart are known as ventricles.
English 
Spanish 
Chinese 
Russian 
German 
Japanese 
Portuguese 
Hindi