Word: bloodstreams
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...scattered barracks. As usual, the medics could not trace the paths by which infection spread. Thousands of recruits had meningococci in their throats, but did not get sick. There was no way to predict which few men would develop a life-threatening infection that would race through the bloodstream and attack their meninges-the covering of the brain and spinal cord...
...nephrons' job is to let only water and waste chemicals get through; they must hold all red cells, white cells and platelets in the channels that lead back to the bloodstream. At the same time, with micrometer precision, they must also hold back big molecules, such as those of albumin, but must let pass the smaller molecules of the body's waste products. If blood appears in the urine, it is a sign that the kidneys are diseased or injured. If the urine is too weak or watery, it means that the kidneys are not filtering out enough...
...Plasma. But for all the debunking dissections, the camel's thirst-quenching secret remained hidden. Then, a young Israeli veterinarian went to work on the ship of the desert. The answer, says Dr. Kalman Perk, 34, of Rehovot's Hebrew University, is in the camel's bloodstream. The plasma has an extraordinary high content of a kind of albumin, which enables the blood to retain its water and maintain its volume and fluidity even when the water in the camel's tissues has been markedly depleted...
...circulate freely. Camels loping in after a two-week journey across the sands are often in an extremely desiccated condition; once the thirsty animals reach water they may drink as much as 30 gallons in ten minutes. As they take in the water, the red cells in their bloodstream swell to as much as 240% of their normal size. In other animals, the cells hemolyze, or burst, causing death if their total volume is increased to more than 130%. In man the danger level...
...with radioactive iodine. Dr. Taplin proved in dogs that these macro-molecules would jam up in the clot-closed arteries, stay there long enough to take their own picture on an X-ray plate, then break up into the normal, small-molecule form of albumin and pass into the bloodstream...