The increase in the maximal a-vO₂ difference is due to all of the following except: A) an increase in mitochondria in the muscle. B) an increase in capillaries in the muscle. C) an increase in hemoglobin. D) all of these account for the increased a-vO₂ difference.

Question

Quizplus · Accepted Answer

An increase in hemoglobin would not directly cause an increase in the maximal a-vO₂ difference. Hemoglobin is responsible for carrying oxygen in the blood, but it does not affect the amount of oxygen that can be taken up and utilized by the muscle. On the other hand, an increase in mitochondria or capillaries in the muscle would increase the amount of oxygen that can be utilized and therefore increase the maximal a-vO₂ difference. Therefore, D is incorrect as well.

The Increase in the Maximal A-VO2 Difference Is Due to All

The Increase in the Maximal A-VO₂ Difference Is Due to All