The pulmonary circuit is a part of the cardiovascular system responsible for transporting blood between the heart and the lungs. It begins when deoxygenated blood is pumped from the right ventricle of the heart into the pulmonary arteries, which carry it to the lungs for oxygenation.
In the lungs, carbon dioxide is exchanged for oxygen during the process of respiration. The now oxygen-rich blood returns to the heart through the pulmonary veins, entering the left atrium. This circuit is essential for maintaining the body's oxygen supply and removing carbon dioxide.
