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Respiratory system-powerpoint-1232722875244833-1


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  • 1. The Respiratory System By: Group I
  • 2. Primary Function ofRespiratory System • The respiratory system supplies the blood with oxygen so that the blood can deliver oxygen to all parts of the body. • And also removes carbon dioxide waste that cells produce.
  • 3. Respiratory System Structure• Nasal Cavity: Passes air through nose• Mouth: Passes air through• Pharynx: The throat. Cone shaped passageway leading to trachea.• Trachea: Windpipe. Main tube connecting nose/mouth to lungs.• Epiglottis: Flap that covers the entrance to the trachea.• Lungs: Main organ of the respiratory system.
  • 4. Respiratory System Structure• Bronchi: Two tubes inside of lungs that air passes through to the bronchioles.• Bronchioles: Small branching out tubes divided into alveoli.• Alveoli: Tiny air sacs that do the oxidation and the exhale of carbon dioxide.• Capillaries: Blood vessels that are imbedded in the walls of the alveoli. While in the capillaries the blood discharges carbon dioxide into the alveoli and takes up oxygen from the air in the alveoli.• Cilia: Hair like structures that remove dust and dirt from the air.
  • 5. How the Respiratory SystemWorks Air that flows from the mouth or nasal cavity travels through the pharynx and moves down to the trachea. Then the air moves to the bronchi tubes as they enter the lungs. Once the air gets in the lungs, the air enters separate branches called the bronchiole. Carbon dioxide passesfrom the blood into the alveoli and is then exhaled.
  • 6. How the Respiratory SystemWorks Once in your lungs Oxygen travelsfrom your lungs through the bloodstreamto the cells in all parts of your body. Cells use the oxygen as fuel and give off carbon dioxide as waste gas.The wastegas is carried by the bloodstream back to the lungs to be exhaled.
  • 7. Interesting Facts About theRespiratory System!!• About half a liter of water per day is lost through breathing.• Yawning brings more oxygen to the lungs.• Your right lung is larger than your left.• We breathe 13 pints of air every minute.• People under 30 take in double the amount f oxygen in comparison to someone whos 80 years old.
  • 8. How to keep yourrespiratory system healthy• Try to Avoid: -Smoking -Being around a smoker(SecondHand) -Inhaling other chemicals and drugs. -Being around dusty or thick polluted air.• What to do: - Exercise - Eat healthy - Go to annual doctor checkups
  • 9. Bibliography• Respiratory System Bibliography• Meeks, Linda and Heit, Philip, Health and Wellness; Glencoe/ McGraw Hill Publishing, 2003, page 183.• "Your Lungs and Respiratory System";; Nemours Foundation; 2009.• “The Importance of Water- Why it is Essential to Life”;• “Why Do I Yawn?”;; Nemours Foundation; 2009.• “Respiratory System”;; Technology for Teachers; 2006.• “Body Systems- Respiratory System”;; FI; 2009.