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===About the Atria===
: The '''left atrium''' is separated from the [[ventricle]]s by the [[Bicuspid Valve]].
: The '''left atrium''' receives [[oxygentatedoxygenated]] [[blood]] from the [[lung]]s through a [[vein]] called the [[Pulmonary Vein]] and pumps it into the [[Left Ventricle|left ventricle]].