Right atrium
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Image:Heart labelled large.png Image:Gray493.png The right atrium is one of four chambers (two atria and two ventricles) in the human heart. It receives de-oxygenated blood from the superior and inferior vena cavae, and pumps it into the right ventricle.
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See also
| Cardiovascular system - Heart - edit |
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| atria (interatrial septum) | ventricles (interventricular septum) | valves (chordae tendinae, papillary muscle)
right heart: (vena cavae, coronary sinus) → right atrium (fossa ovalis) → tricuspid valve → right ventricle → pulmonic valve left heart: (pulmonary veins) → left atrium → mitral valve → left ventricle → aortic valve pericardium | epicardium | endocardium | myocardium conduction system: cardiac pacemaker | Purkinje fibers | bundle of His | SA node | AV node |