Air is breathed through

(a) trachea - lungs - larynx - pharynx - alveoli

(b) nose - larynx - pharynx--bronchus - alveoli - bronchioles

(c) nostrils - pharynx - larynx - trachea - bronchi - bronchioles - alveoli

(d) nose - mouth - lungs

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1 Answers

Correct Option (c) nostrils - pharynx - larynx - trachea - bronchi - bronchioles - alveoli

Explanation:

In mammalian respiratory system, air is breathed through nostrils, from nostrils air passes through pharynx (common passage for food and air) → larynx (voice box) → trachea (wind pipe) → bronchi (2 for each side lungs) → bronchioles → alveoli (small sacs or pouches for exchange of gases).

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