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23 Nov 2019
Smoking tobacco is bad for your circulatory health. In an attemptto maintain the blood's capacity to deliver oxygen, the bodyincreases its red blood cell production, and this increases theviscosity of the blood. In addition, nicotine from tobacco causesarteries to constrict. For a nonsmoker, with blood viscosity of2.5x10^-3 Pa*s, normal blood flow requires a pressure difference of8.0 mm of Hg between the two ends of an artery. If this person wereto smoke regularly, his blood viscosity would increase to 2.7x10^-3 Pa*s, and the arterial diameter would constrict to 90% ofits normal value. What pressure difference would be needed tomaintain the same blood flow?
Smoking tobacco is bad for your circulatory health. In an attemptto maintain the blood's capacity to deliver oxygen, the bodyincreases its red blood cell production, and this increases theviscosity of the blood. In addition, nicotine from tobacco causesarteries to constrict. For a nonsmoker, with blood viscosity of2.5x10^-3 Pa*s, normal blood flow requires a pressure difference of8.0 mm of Hg between the two ends of an artery. If this person wereto smoke regularly, his blood viscosity would increase to 2.7x10^-3 Pa*s, and the arterial diameter would constrict to 90% ofits normal value. What pressure difference would be needed tomaintain the same blood flow?
Hubert KochLv2
2 May 2019
