Wind tunnel

grabcad

The human body uses a unique combination of convergent and divergent nozzles to optimize oxygen flow during breathing. Convergent nozzles, such as the nasal passages, narrow towards the lungs, creating high velocity airflow that maximizes oxygen uptake. In contrast, divergent nozzles like the mouth expand outward from the lungs, reducing air pressure and facilitating easy exhalation. By seamlessly integrating these two nozzle types, humans are able to breathe efficiently in a wide range of environments.