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Respiratory System (Lower Respiratory Tract (Lungs (Occupy most of…

- - - - Beat continuously in opposite direction of incoming air
      - Mucus loaded with dust and other debris away from lungs
    - - Formed by division of trachea
        
        Right bronchus is wider,shorter, and straighter than the left, due to the presence of the heart on the left side
  - - - Primary Bronchi-Secondary Bronchi Tertiary bronchi Bronchioli Terminal Bronchioli
  - - - Oxygen enters blood
      - Carbon dioxide enters alveoli
- - - - Nose,nasal,cavity,sinuses and lungs
    - - Larynx, Trachea, Bronchial tree, and lungs
- - - - Breathing or Ventilation
  - - - Inspiration- Flow of air into lungs
      - Expiration- air leaving lungs