Midterm Solutions 5

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Unformatted text preview: portional to the radius to the 4th power: . Although we don’t know the actual resistance of any of the vessels, we can still find the ratios between them. Let Rn = resistance of a vessel with n cm diameter. So R0.75 = 3.16*R1, and R0.5 = 16*R1. Due to conservation of mass, the flows in the branched vessels must add up to equal the original flow. Substitute using , using resistances in terms of R1. We assume that the pressure drop stays the same over all the branched arterioles. , and . C. Suppose one of the arterioles eventually branches into a set of capillaries. Consider one of these capillaries: If the oncotic pressures in the capillary and interstitial space are 28 mmHg and 5 mmHg respectively, the hydrostatic pressures in the capillary and interstitial space are 3 mmHg and 32 mmHg respectively, and the flow...
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This note was uploaded on 01/22/2014 for the course BIOE 110 taught by Professor Sanjaykumar during the Spring '13 term at University of California, Berkeley.

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