First of all, they've got FUN right there in their name. Second, Milly the milk carton had the nicest legs of any milk carton I've ever seen.
Hemoglobin is the compound in red blood cells that carries oxygen from the lungs to body cells. The oxygen combines readily with the ion in hemoglobin, and hemoglobin can carry more than twenty times its own volume in oxygen.
Key Concept The pulmonary arteries are the only arteries in the body that carry deoxygenated blood. The pulmonary veins are the only veins that carry oxygenated blood. The oxygen saturation of the hemoglobin within the arteries is normally about 95%-I00%.ey Concept The pulmonary arteries are the only arteries in the body that carry deoxygenated blood. The pulmonary veins are the only veins that carry oxygenated blood. The oxygen saturation of the hemoglobin within the arteries is normally about 95%-I00%.