Breathing Volumes

    Cards (6)

    • The composition of air inhaled by the lungs is 21% oxygen, 79% nitrogen, and 0.04% carbon dioxide
    • The composition of air exhaled by the lungs is 21% oxygen, 79% nitrogen, and 4% carbon dioxide
    • During exercise the amount of oxygen in inhaled air will increase and in the exhaled air will decrease
    • During exercise the composition of nitrogen in inhaled and exhaled air will stay the same
    • During exercise the composition of carbon dioxide in inhaled air will stay the same and in exhaled air will increase
    • What are the two muscles involved in respiration?
      • Intercostal muscles
      • diaphragm
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