31^st World Heartcare Summit

Pulmonary Circulation

The pulmonary circulation  is a transport system that diverts deoxygenated blood from the heart to the lungs to be resaturated with oxygen before being distributed to the systemic circulation. The pulmonary circulation carries oxygen-poor blood from the right ventricle to the lungs, where it receives a new blood supply. It then returns oxygen-rich blood to the left atrium. The pulmonary circulation includes the pulmonary artery (also called the "right ventricular outflow duct"), left and right major pulmonary arteries and their lobe branches, intrapulmonary arteries, large elastic arteries, small muscular arteries, arterioles, capillaries, veins, and large arteries. The lymphatic system plays an important role in maintaining dry alveolar membranes and preventing the accumulation of tissue fluid around the pulmonary circulation.