connected to heart left cardiac atrium BTO:0001702 left atrium of heart cardiac left atrium left atrium Wikipedia:Left_atrium XAO:0003191 AAO:0010247 left cardiac atrium MA:0000074 heart left atrium UBERON:0002079 NCIT:C12869 SCTID:244387002 A cardiac atrium that is in the left side of the heart. It receives oxygenated blood from the pulmonary veins, In mammals this is pumped into the left ventricle, via the Mitral valve. EMAPA:17315 galen:LeftAtrium FMA:7097 EHDAA2:0000275 VHOG:0000369 cardiac atrium blood vasculature left cardiac chamber