The human respiratory system

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The human respiratory system

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

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