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8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
8th Grade Ch  4 Sec 1 Respiratory System
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8th Grade Ch 4 Sec 1 Respiratory System

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  • 1. Ch. 4 Sec. 1 Respiratory System
  • 2. Discover activity- How big can you blow up a balloon? Attempt Circumference 1. 2. 3. Average of 3 attempts
  • 3. respiration (cellular respiration) <ul><li>process where glucose & oxygen undergo complex series of chemical reactions in cells </li></ul>
  • 4. respiration
  • 5. Systems working together
  • 6. path of air
  • 7. Path of air <ul><li>NOSE </li></ul><ul><li>lined w/cilia & mucus- cleans, warms & moistens air </li></ul>
  • 8. 2. PHARYNX (throat)
  • 9. <ul><li>3. TRACHEA (windpipe) </li></ul><ul><li>made of cartilage </li></ul><ul><li>lined w/cilia & mucus </li></ul><ul><li>epiglottis prevents choking </li></ul>
  • 10. <ul><li>4. BRONCHI (bronchus) </li></ul><ul><li>direct air  lungs </li></ul>
  • 11.  
  • 12. <ul><li>5. LUNGS </li></ul><ul><li>main organs of resp. system </li></ul><ul><li>bronchi divide into smaller </li></ul><ul><li>branches (bronchioles) </li></ul>
  • 13.  
  • 14. <ul><li>6. ALVEOLI (alveolus) </li></ul><ul><li>ends of bronchioles </li></ul><ul><li>hollow air sacs surrounded </li></ul><ul><li>by capillaries </li></ul><ul><li>large surface area </li></ul><ul><li>gas exchange-oxygen & CO 2 </li></ul><ul><li>(& water) </li></ul>
  • 15.  
  • 16. Respiratory System activities
  • 17.  
  • 18.  
  • 19. The Respiratory System [05:11]
  • 20. breathing <ul><li>movement of air in & out lungs </li></ul>
  • 21.  
  • 22. How you breathe <ul><li>diaphragm = </li></ul><ul><ul><li>large, dome-shaped muscle that plays important role in breathing </li></ul></ul>
  • 23. <ul><li>inhale - diaphragm moves </li></ul><ul><ul><ul><ul><li>rib muscles contract </li></ul></ul></ul></ul><ul><li>exhale - diaphragm moves </li></ul><ul><ul><ul><ul><li>rib muscles relax </li></ul></ul></ul></ul>Animation of lungs breathing
  • 24.  
  • 25. How you speak <ul><li>larynx ( voice box) </li></ul><ul><ul><li>@ top of trachea </li></ul></ul>
  • 26. <ul><ul><ul><ul><li>vocal cords </li></ul></ul></ul></ul><ul><ul><ul><ul><li>stretch across opening of larynx </li></ul></ul></ul></ul><ul><ul><ul><ul><li>air passes over vocal cords </li></ul></ul></ul></ul><ul><ul><ul><ul><li>vibration creates sound </li></ul></ul></ul></ul>
  • 27.  
  • 28.  
  • 29. Time to test your knowledge
  • 30. respiration <ul><li>process where glucose & oxygen undergo complex series of chemical reactions in cells </li></ul>
  • 31. breathing <ul><li>movement of air in & out lungs </li></ul>
  • 32. Which do you inhale when you breathe: oxygen or carbon dioxide?
  • 33. When you inhale you breathe in oxygen . When you breathe out you exhale carbon dioxide .
  • 34. When you inhale, does your chest expand or contract?
  • 35. When you inhale, your chest expands . The diaphragm pulls downward.
  • 36. Are vocal cords located inside your larynx, trachea, or esophagus?
  • 37. The vocal cords are located inside your larynx . Hi! I’m Larry!
  • 38. What substances are exchanged in the alveoli?
  • 39. <ul><li>oxygen </li></ul><ul><li>carbon dioxide </li></ul><ul><li>water </li></ul>
  • 40. Make a diagram of the respiratory system. pg. 115 Label nose, pharynx, larynx, trachea, bronchus, bronchioles, alveoli, lungs & diaphragm.

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