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Lungs receive blood from right side of the heart, whereas the branching of systemic arteries result in a parallel pattern. What is the advantage of such of an arrangement ?A. It ensures that each of the peripheral organs and tissues receive only a fraction of blood pumped by the left ventricleB. It allows for independent variation in blood flow through different tissues as their metabolic activities changeC. It ensures that as blood flows through capillariesm some of the oxygen leaves the blood to enter cellsD. Both (a) and (b) |
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Answer» Correct Answer - D The lungs receive all the blood pumped by the right side of the heart, whereas the branching of the systemic arteries results in a parallel pattern so that each of the peripheral organs and tissues receives only a fraction of the blood pumped by the left ventricle. This arrangement guarantees that all systemic tissues receive freshly oxygenated blood and allows for independent variation in blood flow through different tissues as their metabolic activies change. |
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