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The Respiratory System

The Respiratory System. Respiratory System. Made up of lungs, bronchi, trachea, and other structures Inside the trachea and bronchi are cilia in mucus  trap bacteria and dirt from air. Trachea. Tube leading from the throat to the bronchi BRONCHI Tubes that carry air into the lungs.

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The Respiratory System

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  1. The Respiratory System

  2. Respiratory System • Made up of lungs, bronchi, trachea, and other structures • Inside the trachea and bronchi are cilia in mucus  trap bacteria and dirt from air

  3. Trachea • Tube leading from the throat to the bronchi BRONCHI • Tubes that carry air into the lungs

  4. Gas Exchange • The lungs absorb oxygen from the air • Bronchi are like branches that end with air sacs, these are surrounded by capillaries

  5. Gas Exchange

  6. Breathing • When the muscles and the diaphragm (a large sheet of muscles under the lungs) relax, they move inwards, air is pushed out • When the muscles and diaphragm contract they move outward and air is pulled into the lungs

  7. Control of Breathing • Breathing is mostly involuntary • The brain controls breathing • carbon dioxide builds up in the blood, a signal goes to the brain, the brain sends a message to your lungs to breath

  8. Respiratory Diseases • Diseases that reduce the flow of air into and out of lungs • Asthma: airway swelling and mucus production • Emphysema: the tiny air sacs in the lungs collapse, less oxygen can reach the blood • Chronic Bronchitis: the tissue in the airway swell

  9. Cause or Respiratory Diseases • Exposure to smoke • Exposure to pollution • Exposure to chlorine in swimming pools

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