Biology for IGCSE & O level - Gas Exchange In Humans (Section 2 - No. 11)
Which of the following is a correct order of structures through which air passes during exhalation?
Alveoli -> Bronchioles -> Bronchi -> Trachea
Alveoli -> Bronchi -> Bronchioles -> Trachea
Trachea -> Bronchi -> Bronchioles -> Alveoli
Trachea -> Bronchioles -> Bronchi -> Alveoli
Explanation
Air exits the body in the reverse order of inhalation: alveoli to trachea.
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