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RESPIRATORY SYSTEM

RESPIRATORY SYSTEM. External respiration Internal respiration. FUNCTION of the SYSTEM. Moves oxygen from the outside environment. Takes out carbon dioxide and water from the body. RESPIRATION. External. Internal. Between blood and cell . Between environment and lungs.

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RESPIRATORY SYSTEM

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  1. RESPIRATORY SYSTEM • External respiration • Internalrespiration

  2. FUNCTION of the SYSTEM

  3. Moves oxygen from the outside environment Takes out carbon dioxide and water from the body

  4. RESPIRATION External Internal Between blood and cell Between environment and lungs http://activity.ntsec.gov.tw/lifeworld/english/content/body_cc4.html

  5. RESPIRATORY TRACT Epiglottis Bronchi

  6. TUBULAR PASSAGEWAY FOR AIR TRACHEA Bronchioles

  7. http://www.youtube.com/watch?v=HiT621PrrO0 Respiration Video

  8. The Mechanics of Breathing

  9. DIAPHRAGM Dome-shaped muscle attached to rib cage that contracts& flattens out during breathing

  10. Observe what happens to the diaphragm.

  11. PRESSURE force of air pressing down Less air particles- Low air pressure More air particles- High air pressure

  12. High to Low Pressure (Many to Less) How do you change thepressure?

  13. Air pressure (inside balloon Air pressure (empty space) Air pressure (outside air)

  14. Breathing – The Lungs Breathing animation "nature hates a vacuum" http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html

  15. Breathing in - inhaling Rib cage expands Diaphragm moves downward Pressure reduces inside lung Result – air is drawn into the lungs

  16. Breathing out - exhaling Rib cage contracts Diaphragm moves upward / inward Pressure increases inside lung Result – air is pushed out of the lung

  17. BREATHING

  18. Breathing – The Lungs Breathing animation Write a paragraph explanation/ summary on how breathing works. Discuss the role of the ribcage and the diaphragm and how these creates a pressure difference so breathing can take place. "nature hates a vacuum" http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html

  19. Gas Exchange

  20. Air Composition Inhaled air Nitrogen N2 – 79% Oxygen O2 – 20% CO2 – 0.04% Others - 0.96% • Exhaled air • Nitrogen N2 – 79% • Oxygen O2 – 16% • CO2 – 4% • Others - 1%

  21. Breathing – The Alveoli Diffusion The movement of gas from an area of high concentration to an area of low concentration. http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html http://patrickpoon.com/etp/Diffusion.html

  22. http://patrickpoon.com/etp/Diffusion.html DIFFUSION

  23. Alveoli CO2 and O2 exchanged at the same time venule (deoxygenated blood) arteriole (oxygenated blood)

  24. Breathing – The Alveoli Breathing in Breathing out high concentration of oxygen low concentration of carbon dioxide To the heart From the heart O2 O2 O2 CO2 O2 O2 CO2 CO2 CO2 CO2 low concentration of oxygen high concentration of carbon dioxide Diffusion

  25. Respiration Food + Oxygen  CO2 + water + ENERGY Glucose + O2 CO2 + water + ENERGY C6H12O6+ O2 CO2 + H2O + ENERGY C6H12O6+ 6O2 6CO2 + 6H2O + ENERGY

  26. Cell Respiration C6H12O6 + 6O2 6CO2 + 6H2O + Energy

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