What is the main function of the pulmonary artery?

The main function of the pulmonary artery is to carry deoxygenated blood from the right side of the heart to the lungs. This is a crucial step in the process of respiration. In the lungs, the blood passes through the alveoli, where it picks up oxygen and releases carbon dioxide. This oxygenated blood is then returned to the heart via the pulmonary veins, ready to be pumped out to the rest of the body.

The role of the pulmonary artery is vital in maintaining the body’s oxygen supply and is unique compared to other arteries, as it is one of the few vessels that transport deoxygenated blood. This distinguishes its function from other blood vessels in the body, which typically carry oxygenated blood away from the heart.