(a) For a nonsmoker, with blood viscosity of 2.50 x 103 pa-s, normal blood flow requires a pressure difference of 8 mm Hg between the two ends of a certain artery. If this person were to smoke regularly, his blood viscosity could increase to 2.83 x 10 Pa-s (a 13% increase), and the diameter of his artery would constrict by 10%. What pressure difference between the ends of the artery would then be needed to maintain the same blood flow rate? mm of Hg (b) Which had a larger effect on the pressure difference needed: the change in viscosity, or the change in the diameter of the artery? Select-

(a) For a nonsmoker, with blood viscosity of 2.50 x 103 pa-s, normal blood flow requires a pressure difference of 8 mm Hg between the two ends of a certain artery. If this person were to smoke regularly, his blood viscosity could increase to 2.83 x 10 Pa-s (a 13% increase), and the diameter of his artery would constrict by 10%. What pressure difference between the ends of the artery would then be needed to maintain the same blood flow rate? mm of Hg (b) Which had a larger effect on the pressure difference needed: the change in viscosity, or the change in the diameter of the artery? Select-

Name: Smoking tobacco is bad for your circulatory health. In an attempt to
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Description: Smoking tobacco is bad for your circulatory health. In an attempt to maintain the blood's capacity to deliver oxygen, the body increases its red blood cell production, and this increases the viscosity of the blood. In addition, nicotine from tobacco

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Fluid Pressure

The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.

Gauge Pressure

Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.

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Smoking tobacco is bad for your circulatory health. In an attempt to maintain the blood's capacity to deliver oxygen, the body increases its red blood cell production, and this increases the viscosity of the blood. In addition, nicotine from tobacco causes arteries to constrict.
(a) For a nonsmoker, with blood viscosity of 2.50 x 103 Pa-s, normal blood flow requires a pressure difference of 8 mm Hg between the two ends of a certain artery. If this person were to smoke regularly, his blood viscosity could increase to 2.83 x 10-3 Pa-s (a 13% increase), and the diameter of his
artery would constrict by 10%. What pressure difference between the ends of the artery would then be needed to maintain the same blood flow rate?
mm of Hg
(b) Which had a larger effect on the pressure difference needed: the change in viscosity, or the change in the diameter of the artery? --Select-

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