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Respiratory System. (GROSS ANATOMY (Larynx (voice box, Adams Apple, speech…

- - - - directly behind the nasal cavities
    - - directly in the back of the throat
    - - right above the larynx.
- - - - contract and lift rib cage
  - - - amount of air that is exhaled in a complete inhalation
        
        maximal amount of air that we breathe in and breathe out.
      - Inspiratory Reserve Volume (IRV) -
        
        max air inhale
      - Tidal Volume (TV)
        
        normal amt.
      - Expiratory Reserve Volume (ERV
        
        max air exhale
      - Residual Volume -
        
        amt. remains
      - VC = IRV + TV + ERV
    - - coughing
        
        reflex action started by the sensory nerves in the lining of the respiratory tract= irritation
      - sneezing
        
        reflex, from debris or illness
      - Hiccups
        
        repetitive, uncontrollable contractions of the diaphragm, unknown cause but may be due to overeating, drinking alcohol, or emotional stress.
      - Yawn
        
        bored, tired, contagious