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70 yr old woman with difficulty breathing.Diagnosed with pneumonia…

- - - - spongy, pinkish organ looks like upside down cone in the chest region.
      - Trachea (windpipe)
        
        conducts inhaled air into the lungs through tubular branches
        
        Tubular branches: Bronchi
        
        divides into smaller branches : Bronchioles
  - - - tiny air sacs in your lungs that take up oxygen your breathe in and keep your body going
    - - Diffusion
        
        Oxygen-Carbon Dioxide exchange
      - Perfusion
        
        Pumping blood through your lungs
      - Ventilation
        
        Moving air in and out of lungs
    - - epithelium
        
        cell typ1
        
        constitute the air-blood barrier
        
        covers 95% if alveoili surface
        
        cell type 2
        
        produces the surfactant that coats the inside surface of the alveolus and reduce surface tension
        
        helps keep shape
        
        can also turn into stem cells for repair of any damage
  - - - total pressure exerted by mixture of gases is the sum of the pressures exerted independently by each gas in the mixture
    - - The pressure exerted by a single component of a mixture of gases
    - - when a gas is in contact with liquid, gas will dissolve in the liquid
  - - - the pressure exerted by a single component of a mixture of gases
      - blood levels of oxygen and carbon dioxide are determined by measuring their partial pressure
    - - total pressure of a mixture of ideal gases is the sum of partial pressure of each individual gas.
  - - - associated with an opening with tight cellular junction and an increase in mucosal permeability
    - - essential component to:
        
        COPD
        
        Chronic Obstructive Pulmonary Disease
        
        Chronic inflammatory lung disease causes obstructed airflow from lungs
        
        lung cancer
        
        a type of cancer that begins in the lungs
        
        asthma
        
        condition of airways narrow and swell and produce mucous
        
        makes breathing difficult and triggers coughing, wheezing and shortness of breath
        
        granulomatous lung diseases
        
        an inherited primary immunodeficiency disease which increases the body susceptibility to infections caused by certain bacteria and fungi
  - - - Conducting Zone
        
        provide passageways for air and travel into and out of lungs
        
        Trachea
        
        Bronchi
        
        Pharynx
        
        Bronchioles
        
        Nasal Cavity
    - - anaerobic glycolysis
        
        operates in the absence of oxygen
      - aerobic metabolism
    - - Gas Exchange
        
        Preformed by the lungs eliminating carbon dioxide
        
        Carbon Dioxide:
        
        waste product give off by cellular respiration
      - Regulation of blood pH
        
        Respiration system reduces blood pH by removing CO2
        
        Carbon Dioxide is mildly acidic
- - - - can cause blood pressure to drop to dangerous level
        
        causing heart to not pump enough blood to organs
        
        then organs stop functioning
- - - - Movement of air into and out of lungs