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Parts of the Respiratory System

Parts of the Respiratory System. The Lungs. larynx. bronchus. trachea. bronchioles. lung. Breathing. Involves the diaphragm When diaphragm contracts, chest cavity expands, air comes in When the diaphragm relaxes, chest cavity becomes smaller, air goes out

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Parts of the Respiratory System

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  1. Parts of the Respiratory System

  2. The Lungs larynx bronchus trachea bronchioles lung

  3. Breathing • Involves the diaphragm • When diaphragm contracts, chest cavity expands, air comes in • When the diaphragm relaxes, chest cavity becomes smaller, air goes out • Due to pressure differences inside and outside the body

  4. Respiratory System - Alveoli • Gas exchange takes place in the capillaries of the lungs called the alveoli. • responsible for the exchange of gasses (oxygen and carbon dioxide) in the body.

  5. Alveoli of the lungs

  6. Larynx and Vocal cords

  7. epiglottis Vocal cords trachea Vocal Cords • Found in your larynx • Responsible for voice and sound. • Air passes over the vocal cord to produce sound. • Can be damaged • nodules

  8. Smoking and the Respiratory System http://www.cdc.gov/tobacco/sgr/sgr_2004/index.htm Go to the “flash” presentation of the Surgeon General’s Report on Smoking

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