Answer: right atrium, right ventricle, pulmonary artery, pulmonary vein, left atrium, left ventricle, aorta
Explanation: Veins carry blood to the heart, arteries carry blood away from the heart. The atria of the heart are the small upper chambers of the heart that receive blood from the veins. The ventricles are the large lower chambers of the heart that send blood out through the arteries. The right side of the heart handles deoxygenated blood, the left side handles oxygenated blood. In most cases, veins carry deoxygenated blood and arteries carry oxygenated blood. However, those roles are reversed in the pulmonary artery, which carries deoxygenated blood to the lungs, and the pulmonary vein, which carries oxygenated blood from the lungs to the heart.