Please enable JavaScript.

Coggle requires JavaScript to display documents.

Patho CH13 Respiratory (Diagnostic Tests (Radiography (Helpful in…

- - - - Resident flora
    - - Sterile
      - Tidal Volume: is the amount of air exchanged with quiet inspiration and expiration. ~500mL
      - GAS Exchange
        
        Flow of gases between the alveolar air and blood (external respiration)
        
        Each gas in a mixture moves along its partial pressure gradient, independent of other gases (Dalton law).
        
        Airflow depends on pressure gradient (Boyle law).
        High to Low pressure
- - - - Central chemoreceptors
        
        Located in the medulla
      - Peripheral chemoreceptors
        
        Located in the carotid bodies
  - - - Causes respiratory acidosis:warning:—nervous system depression
  - - - Chemoreceptors respond.
  - - - May be caused by hyperventilation
        
        Excessive amounts of carbon dioxide expired
      - Causes respiratory alkalosis
        :warning:
- - - - Fluid accumulation in alveoli or interstitial tissue impairs gas exchange.
    - - If part of alveolar wall is destroyed, surface area is reduced, so less exchange.
    - - Ventilation (air flow) and perfusion (blood flow) need to match for maximum gas exchange.