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Respiration - Coggle Diagram

- - - - Diaphragm contracts and flattens
        
        Volume of thorax increases
        
        Thoracic pressure falls below air pressure
        
        Air moves into trachea
  - - - Diaphragm relaxes and reverts to dome shape
        
        Volume of thorax decreases
        
        Thoracic pressure rises above air pressure
        
        Air moves out of trachea
- - - - CO2 diffuses from blood in the capillaries into air in the alveoli
- - - - Bacteria cause regular infections leading to emphysema
        
        emphysema means alveoli "pop" and reduce the amount of oxygen that can be absorbed.
        
        Damage to the alveoli walls and loss of elasticity in the alveoli can lead to emphysema, a lung
        condition resulting in breathing difficulties.