heart labeling Version en ligne label the heart diagram par Aya Essam 1 right atrium 2 right ventricle 3 left atrium 4 left ventricle 5 superior vena cava 6 inferior vena cava 7 aorta 8 pulmonary artery 9 pulmonary vein 10 Mitral valve 11 aortic valve 12 pulmonary valve 13 Tricuspid valve 14 apex 15 septum