During maximal aerobic exercise, exercise-induced arterial hypoxemia may result in elite endurance athletes due to which of the following?     reduced venous return leads to decreased pulmonary capillary flow rate     transit time through the pulmonary capillaries is much shorter     oxygen diffusion capacity is no longer calculated using capillary mean PO2     lower venous O2 content increases the PO2 gradient

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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During maximal aerobic exercise, exercise-induced arterial hypoxemia may result in elite endurance athletes due to which of the following?

   

reduced venous return leads to decreased pulmonary capillary flow rate

   

transit time through the pulmonary capillaries is much shorter

   

oxygen diffusion capacity is no longer calculated using capillary mean PO2

   

lower venous O2 content increases the PO2 gradient

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