Ch. 4 Sec. 1 Respiratory System
Discover activity-  How big can you blow up a balloon? Attempt  Circumference 1. 2. 3. Average of 3 attempts
respiration  (cellular respiration) <ul><li>process where glucose & oxygen undergo complex series of  chemical reactions  ...
respiration
Systems working together
path of air
Path of air <ul><li>NOSE  </li></ul><ul><li>lined w/cilia & mucus- cleans, warms & moistens air  </li></ul>
2.  PHARYNX  (throat)
<ul><li>3.  TRACHEA  (windpipe) </li></ul><ul><li>made of cartilage </li></ul><ul><li>lined w/cilia & mucus </li></ul><ul>...
<ul><li>4.  BRONCHI  (bronchus) </li></ul><ul><li>direct air    lungs </li></ul>
 
<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>6.  ALVEOLI  (alveolus) </li></ul><ul><li>ends of bronchioles </li></ul><ul><li>hollow air sacs surrounded  </li><...
 
Respiratory System activities
 
 
The Respiratory System [05:11]
breathing <ul><li>movement of air in & out lungs </li></ul>
 
How you breathe <ul><li>diaphragm = </li></ul><ul><ul><li>large, dome-shaped muscle that plays important role in breathing...
<ul><li>inhale - diaphragm moves </li></ul><ul><ul><ul><ul><li>rib muscles contract  </li></ul></ul></ul></ul><ul><li>exha...
 
How you speak <ul><li>larynx ( voice box) </li></ul><ul><ul><li>@ top of trachea </li></ul></ul>
<ul><ul><ul><ul><li>vocal cords </li></ul></ul></ul></ul><ul><ul><ul><ul><li>stretch across opening of larynx </li></ul></...
 
 
Time to test your knowledge
respiration <ul><li>process where glucose & oxygen undergo complex series of  chemical reactions  in cells </li></ul>
breathing <ul><li>movement of air in & out lungs </li></ul>
Which do you inhale when you breathe: oxygen or carbon dioxide?
When you inhale you breathe in  oxygen .  When  you breathe out  you exhale  carbon dioxide .
When you inhale, does your chest expand or contract?
When you inhale, your chest  expands .  The diaphragm pulls downward.
Are vocal cords located inside your larynx, trachea, or esophagus?
The vocal cords are located inside your  larynx . Hi! I’m Larry!
What substances are exchanged in the alveoli?
<ul><li>oxygen </li></ul><ul><li>carbon dioxide </li></ul><ul><li>water </li></ul>
Make a diagram of the respiratory system. pg. 115 Label nose, pharynx, larynx, trachea, bronchus, bronchioles, alveoli, lu...
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8th Grade Ch 4 Sec 1 Respiratory System

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8th Grade Ch 4 Sec 1 Respiratory System

  1. 1. Ch. 4 Sec. 1 Respiratory System
  2. 2. Discover activity- How big can you blow up a balloon? Attempt Circumference 1. 2. 3. Average of 3 attempts
  3. 3. respiration (cellular respiration) <ul><li>process where glucose & oxygen undergo complex series of chemical reactions in cells </li></ul>
  4. 4. respiration
  5. 5. Systems working together
  6. 6. path of air
  7. 7. Path of air <ul><li>NOSE </li></ul><ul><li>lined w/cilia & mucus- cleans, warms & moistens air </li></ul>
  8. 8. 2. PHARYNX (throat)
  9. 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. 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>
  12. 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>
  13. 16. Respiratory System activities
  14. 19. The Respiratory System [05:11]
  15. 20. breathing <ul><li>movement of air in & out lungs </li></ul>
  16. 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>
  17. 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
  18. 25. How you speak <ul><li>larynx ( voice box) </li></ul><ul><ul><li>@ top of trachea </li></ul></ul>
  19. 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>
  20. 29. Time to test your knowledge
  21. 30. respiration <ul><li>process where glucose & oxygen undergo complex series of chemical reactions in cells </li></ul>
  22. 31. breathing <ul><li>movement of air in & out lungs </li></ul>
  23. 32. Which do you inhale when you breathe: oxygen or carbon dioxide?
  24. 33. When you inhale you breathe in oxygen . When you breathe out you exhale carbon dioxide .
  25. 34. When you inhale, does your chest expand or contract?
  26. 35. When you inhale, your chest expands . The diaphragm pulls downward.
  27. 36. Are vocal cords located inside your larynx, trachea, or esophagus?
  28. 37. The vocal cords are located inside your larynx . Hi! I’m Larry!
  29. 38. What substances are exchanged in the alveoli?
  30. 39. <ul><li>oxygen </li></ul><ul><li>carbon dioxide </li></ul><ul><li>water </li></ul>
  31. 40. Make a diagram of the respiratory system. pg. 115 Label nose, pharynx, larynx, trachea, bronchus, bronchioles, alveoli, lungs & diaphragm.
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