The human respiratory system contains the organs that allow us to get the oxygen we need and to remove the waste carbon dioxide we do not need. It contains these parts: two lungs tubes leading ...

Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Good blood supply - ensuring oxygen rich blood is ...

All of these maladaptations may influence performance. There is general consensus that the capacity of the respiratory system is overbuilt for the demands placed on ventilation and gas exchange by ...