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RESPIRATORY Tract (MUSCLES (diaphragm (does not connect to heart, Left…

- - - - pull up & out
        
        transverse expansion
    - - forced inspiration
  - - - Vertical expansion
- - - - Tertiary Bronchi
        
        2 mm
        
        Bronchioles
        
        simple cuboidal or columnar epithelium
        
        Thick smooth muscle for patency
        
        terminal bronchioles
        
        respiratory bronchioles
        
        alveoli
        
        4 more items...
- - - - Vein inferior
      - Bronchi middle
      - Artery superior
  - - - Artery-Anterosuperior
      - Bronchi Posteriosuprior thick walls
        
        More vertical
        
        Greater choking risk
        
        left lateral recumbant
      - vein inferior thin walls
  - - - Mesothelium
  - - - Some in plasma
      - Mostly bound to hemoglobin
    - - At rest, an alveolar ventilation rate of 4.2 L/min is sufficient to maintain a normal alveolar partial pressure of oxygen of 104 mmHg
      - Gas Pressure Factors
        
        rate of transfer of O2 and CO2 through the membrane (diffusion)
        
        rate of alveolar ventilation
      - VA/Q (VA is alveolar ventilation and Q is perfusion)
        
        No gas exchange
        
        Q normal but . V ) than ratio is 0
        
        (VA) is normal, but the perfusion (Q) is lost, the ratio is infinity
    - - More pressure . to keep up
    - - Surface Area
      - Thickness
      - Gas's diffusion coefficient
        
        Carbon Dioxide diffuses across the respiratory membrane about 20 times as rapidly as Oxygen due to molecular weight
      - Partial Pressure Difference across membrane
- - - - Decreased Under 70%
    - - Normal or decreased
  - - - Normal or decreased
    - - Normal-Increased 70%+
- - - - Tidal Volume (TV or VT)
        
        Volume normally in or out
        
        TLC-IRV-FRC
      - Inspiratory Reserve Volume
      - Residual Volume
        
        What's left after max expiration
        
        TLC-VC
      - Expiratory Reserve Volume
    - - Functional Residual Capacity (FRC)
        
        What's left after normal expiration
      - Inspiratory Capacity
        
        Max inspiration after normal expiration
      - Vital Capacity
        
        Volume exhaled after max inspiration
        
        TLC-RV
        
        FEV/FVC Ratio
        
        Healthy-80% out in 6 seconds
      - Total Lung Capacity
        
        What's in lungs after max inhalation.
        
        FRC+IC