The pulmonary circulation carries the blood from the heart to the lungs to be oxygenated. From the right ventricle the deoxygenate blood leaves through the pulmonary artery. The pulmonary artery is separated into two and they are right pulmonary artery and the left pulmonary artery. It carries the deoxygenate blood through the right to the left. In the lungs, the capillaries deoxygenate blood is taken to the alveolar capillaries. The alveolar capillaries gasses happen when the blood flows, the carbon dioxide gets removed and the oxygen is added to the blood. The blood oxygenates moves from the alveolar capillaries. The newly oxygenate blood leads to the pulmonary veins, it returns to the left atrium of the heart. It is then passed into the
