3. Physiology
        3.13. Respiratory
            3.13.6. Others
3.13.6.2. 20050103

Inspiration

Volume of thoracic cavity increases due to

=> Intrathoracic pressure drops

=> Air flows in, to about terminal bronchiole

=> Past terminal bronioles, diffusion of gas becomes dominant mechanism for ventilation in the respiratory zone.

 

At terminal bronchioles, cross-sectional area increase and velocity of airflow greatly reduced

=> dust settles at the terminal bronchioles

 



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