Cardiovascular drift and AVO2-diff

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  • Created by: Xyla_j
  • Created on: 19-05-17 19:44
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  • AVO2-Diff
    • In exercise, the  PPO2 in the muscle decreases
      • This is because more is used in repiration
        • To release energy
    • This increases the difference in PPO2 in muscles and blood
      • Greater diffusion gradient
        • More O2 diffuses from the red blood cells into the muscles
    • What is the significance of the increase to an athlete in a game?
      • More oxygen extraction by blood to the muscles
      • Respire more, releasing more energy
        • Run for longer
      • Venous blood has less O2 so the is more diffusion at the lungs
        • So more O2 is in the blood

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