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2012-03-28 21:04:09
Respiratory system II Study guide

Resp system II Study guide
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  1. the volume of gas that can be taken into the lungs in a full
    inhalation, starting from the resting inspiratory position; equal to the
    tidal volume plus the inspiratory reserve volume.
    inspiratory capacity
  2. the volume of gas that can be expelled from the lungs from a position
    of full inspiration, with no limit to duration of inspiration; equal to
    inspiratory capacity plus expiratory reserve volume.
    vital capacity
  3. the amount of gas contained in the lung at the end of a maximal inhalation.
    total lung capacity
  4. portions of the resp passageways where air remains and does not take part in gas exchange in the lungs
    Dead Space
  5. anatomical dead space areas
    nose, pahrynx, larynx, trachew, bronchi, broncioles
  6. Where alveolar dead space is located
    alveoli and respiratory zone
  7. anatomic + alveolar dead space
    Total dead space
  8. Major types of hypoxia
    anemic, ischemic, histotoxic and hypoxemic
  9. how are oxygen and carbon dioxide transported in the blood
    plasma and hemoglobin

    • dissolves
    • (slow) bound to hemoglobin
    • (fast)binds to iron as biocarbonate
    • buffering system in blood
  10. Describe the carbonic acid-biocarbonate buffer system in the blood
    • In the bicarbonate buffer system the chemical equilibrium between
    • carbonic acid and bicarbonate act as a pH regulator. If the H+
    • concentration in blood begins to fall (that is if the pH rises), more
    • carbonic acid dissociates , replenishing hydrogen ions. When
    • H+concentration begins to rise (pH drops), the bicarbonate ion acts as a
    • base and removes the excess hydrogen ions.
  11. Where are the control centers for breathing located in the brain
    • Medullary Center-- basic rhythm
    • Pons--modify activity of nedullary neurons
  12. Causes of COPD
    enlargement of alveoli and destruction of alveolar walls
  13. Causes of Tuberculosis
    The bacterium Mycobacteruim tuberculosis

    • Spread Airborne by coughing
    • 12 month course of antibiotics