Word: venous
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Dates: during 1930-1939
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...cells of the blood through the arteries to every part of the body. Life is a slow, low-burning fire which oxygen keeps going. Product of the combustion is carbon dioxide. The blood, relieved of its oxygen, carries carbon dioxide through the veins back to the lungs. Venous blood is dark red with carbon dioxide; arterial blood is bright red with vigorous oxygen. The lungs inhale oxygen, exhale carbon dioxide. The heart is simply an alert pump in this gas exchange system...
...arteries to tiny arterioles, whence it seeps into capillaries. From the capillaries the blood seeps into minute venules, then flows through the veins back to the heart. On the way the blood delivers oxygen to the body cells and picks up carbon dioxide and other waste products. The polluted venous blood which the heart receives it drives into the lungs. The lungs remove carbon dioxide from the blood, add fresh oxygen. Then the blood goes back to the heart for further circulation. Valves in the heart and veins prevent the blood stream backing...