Q.137. Choose the correct pathway of air during expiration.
1) Alveoli -> Bronchi -> Bronchioles -> Pharynx
2) Pharynx -> Bronchi -> Trachea -> Alveoli
3) Bronchioles -> Bronchi -> Larynx -> Nasal cavity
4) Bronchi -> Trachea -> Pharynx -> Larynx
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Answer:
Explanation:
3 is correct option.
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