Word: bloodstreams
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...snag: the high pressure made the capillaries leaky." Even the large molecules of proteins slip through delicate capillaries. Nature had to invent a collection and drainage system so that whatever Leaked into the tissue spaces around the capillaries could be picked up and put back into circulation in the bloodstream. Nature's solution to the problem was the lymphatic system...
Plasma (the blood's clear fluid) is supposed to carry most of the blood's circulating protein supply, but there is always some protein outside the bloodstream because it has leaked through the capillaries -surprisingly as much as half of the blood's total stock. By a still-obscure method, the lymphatic system picks up this protein,, which then flows to lymphatic collection points. Biggest of these, in the abdomen, is the cisterna chyli. Others are in the chest. Through large lymph channels-notably the thoracic duct-the protein returns to the blood stream. Most surprising...
Good Servant. There seems to be no end to the variety of vital biochemical substances that the lymphatic system carries. Dr. Mayerson believes that it conveys hormones into the bloodstream from the glands where they are produced. He is convinced that cholesterol gets into the blood through the lymph-system interchange. And circulating cholesterol is under indictment as a cause of atherosclerosis. In one of nature's delicate balance mechanisms, a rise in blood pressure may push more fats through artery walls. If the lymphatic system cannot drain away all this fat from the tissue spaces around the arteries...
...skin. In the human victim, the roundworms mature to a length of 1½ in. to 3 in. They live and multiply almost exclusively in lymph nodes, especially the big nodes in the arm pits, groin and scrotum. Their tiny offspring are picked up from a victim's bloodstream by a feeding mosquito-soon to infect another victim...
...previous seven years. But, says Dr. Howard H. Hopwood of the Academy of Medicine, the Sabin method has important advantages over Salk in mass vaccination campaigns. The live virus can be given by mouth, rather than by needle. It not only builds up polio-fighting antibodies in the bloodstream, as does the killed-virus Salk vaccine, but also promotes intestinal immunity, thus preventing the spread of polio in sewage. So Sabin vaccine can lead to the complete eradication of polio...