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The human respiratory system

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  • 1. The Human Respiratory System Jeff Kwan Pri. 4A
  • 2. The Nasal Cavity
    • The nasal cavity is a large fluid filled space above and behind the nose in the middle of the face.
    • The nasal cavity humidifies the inhaled air, warms or cools it to within 1 degree of body temperature and removes dust and other particles.
  • 3. The Windpipe
    • The windpipe is a tube that allows the passage of air to the lungs
    • Except for the differences in length, the windpipe in other mammals is generally similar to that in humans.
  • 4. The Bronchi
    • The bronchi are passages of airway in the respiratory tract that conducts air into the lungs.
    • The windpipe divides into two main bronchi, the left and the right.
  • 5. The Lungs
    • The lungs are essential respiration organs in all air-breathing animals.
    • Their main function is to transport oxygen into the bloodstream, and to release carbon dioxide from the bloodstream.
  • 6. Air Composition
    • The composition of the air in the atmosphere is dominated by two gases, Nitrogen and Oxygen.
    • Air also contains a variable amount of water vapour, around 1%.
  • 7. References
    • http://en.wikipedia.org/wiki/Nasal_Cavity
    • http://en.wikipedia.org/wiki/Windpipe
    • http://en.wikipedia.org/wiki/Bronchi
    • http://en.wikipedia.org/wiki/Lungs

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