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THE RESPIRATORY SYSTEM
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| Submitted: Tue Jun 20 2006
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THE RESPIRATORY SYSTEM As we breathe in, oxygen rich air enters the lungs. This oxygen is vital for the metabolic processes of the body, which are crucial in order for us to survive. In a healthy person, the amount of oxygen present in the inhaled air is more than adequate for the body tissues to function normally. However, if a person is ill or has been injured, the reduction in oxygen reaching the tissues, results in deterioration of body functions. This is called Hypoxia and may lead to death if not rectified immediately. The process of breathing in and out, and the exchange of the gases, oxygen and carbon dioxide, in the lungs and cells throughout the body, is known as respiration and all the organs in the body that are used for respiration are collectively known as the respiratory system. These include the mouth, nose, pharynx (throat), larynx (commonly...
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