SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Blood plasma. Close-up of bags of blood plasma that has been extracted from donated blood. Blood plasma is the fluid in which the blood cells are suspended. It consists of a solution of inorganic salts with a high concentration of proteins, along with fats, glucose, hormones and clotting factors. Plasma transfusions are used to treat patients with deficiencies in plasma components or those with abnormally high concentrations of plasma-bound agents. Photographed at the blood-transfusion centre of the Federal Medical and Biological Agency, Moscow, Russia.
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