Air enters through the nose or mouth, then proceeds to the pharynx, trachea, bronchi, bronchioles, and finally alveoli.
L'air entre par le nez ou la bouche -> pharynx -> trachée -> bronches -> bronchioles -> alvéoles.
| Front | respiratory tract |
|---|---|
| Back | air enters through nose or mouth -> pharynx -> trachea -> bronchi -> bronchioles -> alveoli |
Tags: 6_4_gas_exchange
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