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.
Comment:
[homology-note] "The tetrapod clade develops a complete atrial septum and loses the fifth aortic arch altogether.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000328", ontology="VHOG", source="ISBN:978-0030223693 Liem KF, Bemis WE, Walker WF, Grande L, Functional Anatomy of the Vertebrates: An Evolutionary Perspective (2001) p.620", source="http://bgee.unil.ch/"}
Synonyms:
exact_synonym:
heart right atrium; right atrium; right atrium of heart