The pulmonary artery runs from the right ventricle to the lungs and delivers deoxygenated blood within the pulmonary circulation system. Pulmonary artery is the artery of the pulmonary circulation, which transports oxygen-deficient blood from the right side of the heart to the lungs. The major pulmonary artery is known as the pulmonary trunk. The pulmonary circulation pumps blood from the heart to the lungs for oxygenation and back to the heart. Learn about its anatomy and function at Kenhub!