EVAN OTO / SCIENCE PHOTO LIBRARY EVAN OTO / SCIENCE PHOTO LIBRARY
An illustration of the heart and branches of the pulmonary arteries and veins in situ from an anterior view. The pulmonary arteries are responsible for transporting deoxygenated blood to the lungs, while the pulmonary veins return oxygenated blood from the lungs to heart in order to be pumped to the rest of the body.
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