Card Set Information

2014-04-22 23:46:46
respiratory ventialation

Show Answers:

  1. what is the process involved in exchange of oxygen and carbon dioxide between the body’s fluid and the external environment
    external respiration
  2. what is the absorption of oxygen and release of carbon dioxide by cells in tissues
    internal respiration
  3. what pressure has molecules bound around, normal Patm (atmospheric pressure)
    gas (air)
  4. what of gas in air is relatively low as compare to liquid
  5. pressure exerted by has in a closed container is due to the number of collisions the gas molecules have with the container walls
    gas (air)
  6. more collisons = more
  7. what is gas in a closed container at constant temperature
    boyles law
  8. what law has pressure inversely proportional to volume, and volume goes up, pressure goes down, if we double the volume, pressure is halved
  9. movement of diaphragm and rib cage, to allow rib cage movement up and out, increase in volume =
    decrease in pressure in thoracic cavity = decrease in pressure in lungs
  10. pressure in thoracic cavity
    intrapleural pressure
  11. pressure in lungs (alveoli)
    intrapulmonic pressure
  12. pressure gradient : high pressure to low pressure
    direction of airflow
  13. pressure out (atm) = pressure in (lungs) ; no movement
    airflow inhalation
  14. if make thoracic cavity and lungs bigger, pressure in lungs decrease, pressure in atm is > pressure in lungs
    airflow inhalation
  15. airflow will go from higher pressure to lower pressure (outside body to inside)
    airflow inhalation
  16. thoracic cavity and lungs volume decrease
    airflow exhalation
  17. pressure in lungs increase, pressure in atm < pressure in lungs
    airflow exhalation
  18. airflow will go from high pressure to lower pressure  (inside body to outside)
    airflow exhalation
  19. what primary muscle elevates ribs (25% of change in volume if cavity)
    external intercostals
  20. what primary muscle is flatten floor of thoracic cavity (75% of change in volume in cavity)
  21. what are the accessory muscles involved in inspiratory muscles
    sternocleidomastoid, scalenes, pectorals minor, serratus anterior
  22. what are the expiratory muscles
    internal intercostals, external oblique, internal oblique, and rectus abdominus
  23. what is volume measured in normal breathing
    tidal volume
  24. what is the volumes measured and is the extra amount you can breath in past TV
    inspiratory reserve volume
  25. what is the volume measured and is the extra amount you can breath out past TV
    expiratory reserve volume
  26. what is the volume measured lefts in lungs after max exhale
    residual volume
  27. what is the amount you can fill lungs with
    inspiratory capacity
  28. what is the amount remaining in lungs after normal respiratory cycle
    functional residual capacity
  29. what is the maximum volume you can move into or out of lungs in one respiratory cycle
    vital capacity
  30. what is the total volume of lungs
    total lung capacity
  31. adjust to meet oxygen demands of the body can change rate (breaths/min) and depth (volume) (tidal volume= Vt)
    regulation of pulmonary ventilation
  32. what is the number of breaths/min (f) average adult: 14
    respiration rate
  33. what is volume of air moved per minture
    Ve = f x Vt (breath/min x volume/breath = volume/min)
    respiratory minute volume
  34. how much air reaches alveoli per minute (gas exchange) and not all air reaches alveoli and is stuck in conducting zone "dead space" Vd
    alveolar ventilation (Va)
  35. what is FEV1
    forced expiratory volume in one second