Original sentence: From the right ventricle, blood is pumped through the pulmonary semilunar valve into the pulmonary artery.The blood is then distributed to the body through the systemic circulation before returning again to the pulmonary circulation.The oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle.The pulmonary arteries carry deoxygenated blood to the lungs, while the pulmonary veins carry oxygenated blood to the red blood cells where they release carbon dioxide and pick up oxygen during respiration.This blood enters the two pulmonary arteries (one for each lung) and travels through the lungs.This blood then enters the left atrium, which pumps it through the bicuspid valve, also called the mitral or left atrioventricular valve, into the left ventricle