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RESPIRATORY SYSTEM (Anatomy & Organs of Respiratory Tract: (Lower…

- - - - trachea (begins just under the larynx (voice box) and runs down behind the breastbone and divides between the lungs)
  - - - pharynx (behind the mouth and nasal cavity, and above the esophagus and larynx)
      - portion of larynx (anterior part of neck )
      - nasal passages
      - nose
- - - - . The common function of the lungs during respiration is to inhale oxygen and exhale carbon dioxide.
  - - - The left lung is narrower than the right to make room for the heart.
        
        The right lung has a cardiac impression
- - - - left has only two lobes
        
        right bronchus is slightly larger than the left one
- - - - Pneumoma: Bacterial or viral infection of lungs
        
        Lung Cancer: Uncontrolled cell growth & develop of tumors
        
        Seasonal Flu: viral infection many variations of virus & changes rapidly year to year