L(a) The heart pumps blood into the aorta at a rate of 4.Calculate the average speed of blood ifminthe aorta's diameter is 2.1 cm.1155V bloodcmS(b) The aorta branches many times until the blood finally reaches the smallest branch: the capillaries.Each capillary has an average diameter of 6.9 μm and the blood slows down to 0.5the number of capillaries in the body. Does this answer look reasonable?mmCalculate.Sn1840capscapillaries(c) For what duration of time is a red blood cell in a capillary if the average capillary length is 1 mm?t = 0.0867S

(a) To calculate the average speed of blood in the sorte, we can use the formulaVabode =WhereVend is…

Answered: L (a) The heart pumps blood into the…

University Physics Volume 1

18th Edition

ISBN:9781938168277

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Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter14: Fluid Mechanics

Section: Chapter Questions

Problem 113AP: The flow of blood through a 2.00106 m -radius capillary is 3.80109cm3/s . (a) What is the speed of...

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Oxygen reaches the veinless cornea of the eye by diffusing through its tear layer, which is 0.500-mm thick. How long does it take the average oxygen molecule to do this?
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The flow of blood through a 2.00106 m -radius capillary is 3.80109cm3/s . (a) What is the speed of be blood now? (b) Assuming all the blood in the body passes through capillaries, how many of them must there be to carry a total flow of 90.0 cm3/s?
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Given the following volumes: IR= 2,500 mL; ERV= 1,000 mL; RV= 1,100 mL; VC= 4,050 mL, calculate the following:a. Inspiratory capacityb. Functional Residual Capacityc. Total lung capacity
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The velocity of the blood in the aorta is about 0.5 m/s, and the velocity of the blood in a capillary is about 0.001 m/s. We have only one aorta, with a diameter of 20 mm, but many capillaries in parallel, each with a diameter of 8 μm. Using vascular resistance approach estimate how many capillaries are typically open at any one time.
The partial pressure of oxygen in the lungs is about 150 mm of Hg. (The partial pressure is the pressure of the oxygen alone, if all other gases were removed.) This corresponds to a concentration of 5.3 × 1024 molecules per m3. In the oxygen-depleted blood entering the pulmonary capillaries, the concentration is 1.4 × 1024 molecules per m3. The blood is separated from air in the alveoli of the lungs by a 1-μm-thick membrane. What is the rate of transfer of oxygen to the blood through the 5 × 10-9 m2 surface area of one alveolus? Give your answer in both molecules/s and μmol/s. Assume The diffusion coefficient for oxygen in tissue is 2 × 10-11 m2/s. What is the same rate of transfer in μmol/s. Give your answer to 1 significant figure.

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