Breathing and Exchange of GasesHard

Question

Air is breathed through

Options

A.rachea - lungs - larynx - pharynx - alveoli
B.nose - lungs - pharynx - alveoli - bronchioles
C.nostrils - pharynx - larynx - trachea - brpnchi - bronchioles - alveoli
D.nose - mouth - lungs

Solution

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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