Oxygenated blood is returned to the heart from the lungs by the

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The pulmonary veins are responsible for transporting oxygenated blood from the lungs back to the heart. The pulmonary arteries carry deoxygenated blood from the heart to the lungs for gas exchange. The pulmonary trunk is a large vessel that separates into the left and right pulmonary arteries. The coronary sinus and cardiac veins are involved in the return of deoxygenated blood from the coronary circulation.

Oxygenated Blood Is Returned to the Heart from the Lungs