What is the function of the pulmonary veins?

The pulmonary veins have the specific function of carrying oxygenated blood from the lungs to the left side of the heart. After the blood has passed through the lungs, it undergoes oxygenation, where carbon dioxide is expelled and oxygen is absorbed. The now oxygen-rich blood is then collected by the pulmonary veins and transported directly to the left atrium of the heart. From there, it can be pumped into the left ventricle and subsequently circulated throughout the body to supply tissues and organs with the oxygen they need for metabolism. This process is crucial for maintaining the body’s oxygen supply and supporting overall bodily functions.