Question

Give the path of inhelation and exhalation of air in human?


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Answer 1

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Respiratory System:

Includes respiratory airways leading into (& out of) lungs plus the lungs themselves. Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)

Answer 2

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In order for the lungs to expel air the diaphragm relaxes, which pushes up on the lungs. The air then flows through the trachea then through the larynx and pharynx to the nasal cavity and oral cavity where it is expelled out of the body.