Aging and the respiratory system.

  title={Aging and the respiratory system.},
  author={Alessandro Rossi and A Ganassini and C Tantucci and Vittorio Grassi},
  volume={8 3},
All the components of the respiratory system are affected by aging, though at different rates: i) the lung elastic recoil decreases; ii) PaO2 decreases and the D(A-a)O2 increases; iii) the chest wall becomes stiffer; iv) the inspiratory muscles loose strength; and v) the respiratory centres are less sensitive. Residual volume, closing volume and function residual capacity increase, whereas vital capacity and FEV1 progressively decrease. The flow volume curve becomes more convex to the volume… CONTINUE READING
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