CLAUS LUNAU / SCIENCE PHOTO LIBRARY CLAUS LUNAU / SCIENCE PHOTO LIBRARY
Heart and brain vascular system. Artwork showing the arteries (red) and veins (blue) of the torso, arms, neck, head and brain. The brain is at top (white) and the heart at centre. Arteries carry blood away from the heart, while veins bring blood back to heart. The arteries (apart from the pulmonary artery) carry oxygenated blood, while the veins (apart from the pulmonary vein) carry deoxygenated blood. Blood vessels here include the aorta, vena cava, subclavian arteries, jugular veins, and carotid arteries. Other structures (not highlighted) are the bones of the skeleton, abdominal organs, and the trachea (windpipe) in the throat.
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