Part A Blood Speed in an Arteriole A typical arteriole has a diameter of 0.080 m

Question

Part A Blood Speed in an Arteriole A typical arteriole has a diameter of 0.080 mm and carries blood at the rate of 9.6 × 10-5 cm3/s What is the speed of the blood in an arteriole? 9.78-10 3 Incorrect: Try Again: 4 attempts remaining Part B Suppose an arteriole panches io 8800 capillanies each with a diameter of 60 10m. What is the blood speod in the caplaries? (The ow speed in capilanies is beneficia it promotes the afusion of materials to and from the blood) Express your answer using two significant figures 4 2

Explanation / Answer

volume flow rate = A*v

A = area of cross section = pi*d^2/4

d = diameter = 0.08 mm = 0.008 cm

9.6*10^-5 = pi*(0.008)^2/4*v

speed v = 1.91 cm/s <<<---ANSWER

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part B

volume flow rate = n*A*v

volume flow rate = 9.6*10^-5*10^-6 m^3/s

9.6*10^-5*10^-6 = 6800*pi*(6*10^-6)^2*v

v = 0.012 cm/s

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