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The letters AV refer to the atrioventricular valves. There is one on each side of the heart between the atrial and venticular chambers. The one on the right side of the heart is called the right atrioventricular valve, or the ticuspid valve. The one on the left side of the heart is called the left atrioventricular valve, bicuspid valve, or mitral valve.

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15y ago

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