What is minor or pulmonary circulation?

Minor or pulmonary circulation refers to the part of the circulatory system responsible for transporting deoxygenated blood from the heart to the lungs and returning oxygenated blood back to the heart. It begins when the right ventricle pumps blood into the pulmonary arteries, which carry it to the lungs for oxygenation. After picking up oxygen and releasing carbon dioxide, the blood returns to the left atrium via the pulmonary veins, completing the cycle. This process is essential for gas exchange and maintaining overall oxygen levels in the body.