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70 year old female, viral infection, wet wheezy cough, pneumonia…

- - - - Type 1 alveolar cells
        
        single layer of squamous epithelial cells
      - External surface of alveoli covered by a cobweb of pulmonary capillaries
      - together the capillaries and alveolar walls make the respiratory membrane
      - diffusion of gases occurs a cross the membrane
      - Type 2 alveolar cells
        
        scattered among type 1 alveolar cells
        
        secrete surfactant and many antimicrobial proteins
      - Alveolar sac
        
        terminal clusters of alveoli
        
        smooth muscle and connective tissue fibers
      - alveolar duct
      - respiratory bronchioles
        
        gas exchange begins
      - Terminal bronchioles
        
        less than .5 mm in diameter
      - tertiary bronchi
      - secondary bronchi
        
        3 on the right
        
        2 on the left
        
        feeding lobes
  - - - contains alveoli, alveolar ducts, terminal bronchioles
  - - - change the volume you change the pressure
      - volume goes up ......pressure goes down
      - pressure goes up... volume goes down
    - - partial pressure is proportional to the percentage of that gas
      - more percentage more pressure
      - gas diffuses down the partial pressure gradient from a high concentration to the low
      - O2 pressure is high in the inspired air and low in the deoxygenated blood
    - - the partial pressure of a gas state are proportional to the partial pressures of that gas in a liquid
      - the partial pressure of a gas carries directly over into a liquid if it diffuses....... ex O2
  - - - equalizes with atmospheric pressure because lungs are directly connected to the outside
  - - - Causes alveoli to become stiff and gas exchange to slow
- - - - chills
      - sweating
      - wet cough
      - fast breathing
      - chest pain
- - - - Pleural effusions, empyema
        
        inflammation and infection of plueral membranes
      - Respiratory failure
  - - - it can cause shortness of breath and headaches
      - can lead to hypoxia
        
        low oxygen levels in the tissues
        
        can cause brain damage and heat failure
    - - since she is older her immune system may be weaker than normal