Matching Pairs ordering bloodflow through cardiovascular systemOnline version place in correct order the circulation of the blood through the heart by Marion Dunkerley 1 12 2 6 3 9 4 2 5 13 6 10 7 14 8 5 9 1 10 3 11 7 12 8 13 11 14 4 systemic circulation mitral valve tricuspid valve lungs pulmonary vein aorta pulmonic valve right ventricle left atrium pulmonary artery left ventricle aortic valve inferior and superior vena cava right atrium