PhysLab Final Pulmonary

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Author:
bkheath
ID:
120576
Filename:
PhysLab Final Pulmonary
Updated:
2011-12-03 23:14:01
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PhysLab Final Pulmonary
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PhysLab Final Pulmonary
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  1. Mechanical mvmt of air in and out of lungs
    Ventilation
  2. Mvmt of air in and out of lungs as well as gas exchange
    Respiration
  3. Conducting zone vs respiratory zone
    Conducting primary function is to provide conduit through which air can flow & includes airways up to respiratory bronchioles (in resp zone)
  4. Device which measures lung volumes from which lung capacities can be calculated
    Spirometer
  5. The volume of air that moves into and out of lungs during a single, unforced breath
    Tidal volume (VT)
  6. Max vol of air that can be inspired from the end of a normal inspiration
    Inspiratory reserve volume (ISV)
  7. Max vol of air that can be expired from the end of a normal expiration
    Expiratory reserve volume (ERV)
  8. Air that remains in the lungs after maximal expiration to prevent them from collapsing
    Residual volume (RV)
  9. Diseases which involve increases in airway resistance (blockage)
    Obstructive pulmonary diseases
  10. Diseases which involve something interfering with lung expansion (less compliance)
    Restrictive pulmonary diseases
  11. Max amt of air a person can expire following a maximal inspiration
    FVC (forced vital capacity)
  12. Amt of air after a maximal exhalation that can be exhaled in a certain amt of time: ____; Max amt exhaled in first sec (___)
    • FEV (forced expiratory volume)
    • FEV1
  13. Obstructive disorders have ___ than normal ____,
    Restrictive disorders have ___ than normal ____
    • lower; FEV1
    • lower; FVC
  14. What is normal FEV1 to FVC ratio?
    .75-.85
  15. Total amt of air that flows into or out of the resp system
    Minute ventilation (VE)
  16. Minute Ventilation (VE) =
    VT x f
  17. Ventilation is higher in upper body b/c __
    not as trained as lower body. Smaller muscle groups need more O2 b/c not using it as efficienty as larger muscle groups.
  18. Normal Tidal volume (VT) at rest in mL
    500 mL per breath
  19. Anatomical vs physiological dead space
    • Anatomical: air in resp tract not participating in gas xchg
    • Physiological: extra dead space from damaged lung tissue where no gas xchg takes place
  20. Max rate of airflow during a forced expiration
    Peak flow (in L)
  21. VT =
    VA + VD
  22. Ratio to test for pulmonary disorders
    FEV1/VC
  23. VC=
    Vital capacity
  24. .................| SBP | DBP | HR | TPR | VR | SV | Q |
    Isometric:
    Dynamic:
    • ................| SBP | DBP | HR | TPR | VR | SV | Q
    • Isometric: I | I | I | I | D | D | nc
    • Dynamic: I | nc | I | D | I | I | I
  25. FEV1/VC ratio ___ with obstructive disorders and ___ with restrictive disorders
    decreases; increases
  26. Ability to duplicate total liters (VC), but unable to force air out at the same rate (FEV1) (disorder)
    Obstructive
  27. Ability to force air out of the lungs at the same rate (FEV1), but unable to fill the lungs with the same amount of air (VC). (disorder)
    Restrictive
  28. Chemoreceptors (in blood vessels, Medulla)
    __ pH = ↑ ventilation
    __ CO2= ↑ ventilation
    __ O2= ↑ ventilation
    Muscle and joint receptors
    ↑ mechanical stress = __ ventilation
    Pain and temperature receptors
    ↑ pain, temp. = __ ventilation
    • Chemoreceptors (in blood vessels, Medulla)
    • ↓ pH = ↑ ventilation
    • ↑ CO2= ↑ ventilation
    • ↓ O2= ↑ ventilation
    • Muscle and joint receptors
    • ↑ mechanical stress = ↑ ventilation
    • Pain and temperature receptors
    • ↑ pain, temp. = ↑ ventilation

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