connected to heart right cardiac atrium MA:0000075 XAO:0003192 heart right atrium A cardiac atrium that is in the right side of the heart. It receives deoxygenated blood. In mammals, this comes from the superior and inferior vena cava and the coronary sinus, and pumps it into the right ventricle through the tricuspid valve. SCTID:244383003 right atrium VHOG:0000328 UBERON:0002078 Wikipedia:Right_atrium FMA:7096 EHDAA2:0000290 galen:RightAtrium BTO:0001703 NCIT:C12868 AAO:0010248 cardiac right atrium right cardiac atrium EMAPA:17321 right atrium of heart cardiac atrium blood vasculature right cardiac chamber