31 LUNG

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deamon
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76586
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31 LUNG
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2011-04-01 07:22:47
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  1. what happens to air as it passes through the nasal cavities?
    Warms, moistens, and filters
  2. what is another name for the pharynx?
    throat
  3. what are the 3 parts of the pharynx
    • oropharynx
    • larango pharynx
    • nasopharynx
  4. which lung is bigger and why?
    the right lung is bigger because the heart takes up space on the left side of the thoracic cavty
  5. what is ventilaton?
    the movement of air in and out of the lungs
  6. what are the 2 phases of ventilation?
    inspiration (inhilation), and experation (exhalation)
  7. what are the main muscles of ventilation?
    diaphragm & intercostal muscles
  8. where is the diaphragm located?
    between the thoracic and abdominal cavity
  9. where are the intercostal muscles?
    between the ribs
  10. what happens to air pressure when the volume is increased or decreased?
    decrease air pressure when the volume is increased & increase air pressure decrease
  11. what happens to the volume of the thoracic cavity when the diaphragm contracts?
    it gets larger
  12. what happens to the volume of the thoracic cavity when the diaphragm relaxes?
    it gets smaller
  13. describe what happens during inspiration (3)
    • 1. diaphragm and intercostal muscles contract
    • 2. the volume inside the chest cavity increases
    • 3. enters the lungs
  14. describe what happens during expiration (3)
    • 1. diaphragm and intercostal muscles relax
    • 2. the volume inside the chest cavity decreses
    • 3. exits the lungs
  15. define ventilation
    air moving in and out of the lungs
  16. define internal resporation
    the exchange of oxygen and carbon dioxide between the tissue cells and the bloodstream
  17. define external resporation
    the exchange of oxygen and carbon dioxide between the lungs and bloodstream
  18. define cellular respiration
    cells using oxygen and nutrients to produce energy, water, and carbon dioxide
  19. define nasal septum
    divides nose into two hollow spaces called nasal cavities
  20. define olfactory receptors
    receptors for the sence of smell
  21. define sinus
    cavities in the skull that are around the nasal area
  22. define cilia
    hair like structures that help trap dirt as they enter the nose so trapped particles can be pushed toward the esophogus and swallowed
  23. define mucus
    moistens the air and helps trap pathogens and dust
  24. define larynx
    voice box
  25. define epiglottis
    special piece of cartilage
  26. define glottis
    opening between the vocal cords
  27. define pleura
    a serous membrane that covers the lungs and lines the thoracic cavity
  28. define bronchioles
    smallest branches
  29. define alveoli
    air sacs
  30. define surfactant
    fatty lipid substance
  31. which side of the heart receives freshly oxygenated blood from the lungs and which blood vessels carry this blood
    left. veins
  32. which side of the heart receives blood that is low in oxygen and which blood vessel carries this blood
    right. artery
  33. what is the normal respiratory rate for an adult
    14-18
  34. what is the normal respiratory rate for a children
    16-25
  35. what is the normal respiratory rate for an infant
    30-50

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