cardiologist, a high risk individual with angina pectoris during exercise was informed that his coronary blood flow is reduced. The most important variable that determines resistance to blood flow in his blood vessels is most likely:     increased viscosity of blood from not exercising.     the length of the

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Clinical Corner: In speaking with his cardiologist, a high risk individual with angina pectoris during exercise was informed that his coronary blood flow is reduced. The most important variable that determines resistance to blood flow in his blood vessels is most likely:

   

increased viscosity of blood from not exercising.

   

the length of the blood vessel as he is a short individual.

   

the diameter of the vessel due to coronary artery disease.

   

increase blood pressure due to hypertension.

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