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Blood A. Makes up about 7 per cent of body weight. B. Forms a higher percentage of body weight in fat than in thin people. C. Volume can be calculated by multiplying plasma volume by the haematocrit (expressed as a percentage). D. Volume rises after water is drunk. E. Expresses serum when it clots. |
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Answer» A. True For example, 5 kg (about 5 litres) in a 70 kg man. B. False Since fat tissue is relatively avascular, the reverse is true. C. False It can be calculated by multiplying plasma volume by 1/1 minus haematocrit (expressed as a decimal). D. True The water is absorbed into the blood. E. True Serum is plasma minus its clotting factors. |
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