Respiratory

• What is one effect of physical activity on lung capacity?

  Increased amounts of air inhaled/exhaled or increased vital capacity
• What happens to tidal volume during exercise?

  It increases
• What is one benefit of physical activity related to respiratory muscles?

  Stronger respiratory muscles
• What is one change in minute ventilation due to exercise?

  Increased maximum minute ventilation or reduced resting minute ventilation
• What is one effect of exercise on breathing frequency?

  Increased maximum breathing frequency or reduced resting breathing frequency
• How does physical activity improve gaseous exchange?

  It improves the efficiency of gaseous exchange/diffusion at lungs and muscles
• What happens to the surface area of alveoli due to physical activity?

  Increased surface area of alveoli available for respiration
• What is one effect of physical activity on capillarisation at alveoli?

  Increased capillarisation at alveoli