CLOUDS HILL IMAGING LTD / SCIENCE PHOTO LIBRARY CLOUDS HILL IMAGING LTD / SCIENCE PHOTO LIBRARY
Blood flowing through blood vessels. Footage of blood flowing through blood vessels in mammalian tissue. Blood consists of blood cells suspended in plasma. Its function is to deliver nutrients and oxygen to body cells, and to remove metabolic waste products (including carbon dioxide). Blood vessels range in size from large arteries and veins, to small capillaries.
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