Ch 12 vocab

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Ch 12 vocab
2011-03-03 20:20:23

ch 12 vocab
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  1. adenoids
    collections of lymph tissue in the nasopharynx (AKA pharyngeal tonsils)
  2. alveolus
    air sac in the lung
  3. apex of the lung
    uppermost portion of the lung
  4. base of the lung
    lower portion of the lung
  5. bronchioles
    smallest branches of the bronchi
  6. bronchus
    branch of the trachea (windpipe) that is a passageway into the air spaces of the lung; bronchial tube
  7. carbon dioxide
    a gas produced by body cells when oxygen and food combine; exhaled through the lungs
  8. cilia
    thin hairs attached to the mucous membrane epithelium lining of the respiratory tract
  9. diaphragm
    muscle separating the chest and abdomen, most important muscle for breathing
  10. epiglottis
    lid-like piece of cartilage that covers the larynx
  11. expiration
    breathing out
  12. glottis
    opening to the larynx
  13. hilum (of lung)
    midline region where the bronchi, blood vessels, and nerves enter and exit the lungs
  14. inspiration
    breathing in
  15. larynx
    voice box
  16. lobe
    division of lung
  17. mediastinum
    region between the lungs in the chest cavity
  18. oxygen
    gas that passes into the bloodstream at the lungs and travels to all body cells
  19. palatine tonsil
    one of a pair of almond-shaped masses of lymphoid tissue in the oropharynx
  20. paranasal sinus
    one of the air cavities in the bones near the nose
  21. parietal pleura
    outer fold of pleura lying closest to the ribs and walls of the thoracic cavity
  22. pharynx
    throat; composed of the nasopharynx, oropharynx, and laryngopharynx
  23. pleura
    double-folded membrane surrounding each lung
  24. pleural cavity
    space between the folds of the pleura
  25. pulmonary parenchyma
    the essential cells of the lung
  26. trachea
  27. visceral pleura
    the inner fold of pleura lying closest to the lung tissue