Question

write the passage of air in sequence from nostril to lungs.​

Answer 1

Answer:

The respiratory route air passes through is: Nostrils → nasal cavity →Pharynx → Larynx →Trachea → Bronchi (with cartilaginous rings) →Bronchioles (without rings) → Alveoli (air sacs). Alveoli are the seat of exchange of O2 / CO2 between lungs and blood.

Explanation:

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Answer 2

Answer:

Air passage way consists of nostrils, nasal cavities, pharynx, larynx, trachea, bronchi and bronchioles (present in lungs). First air enters to nose through nostrils. There are two nasal cavities in which hair and mucus are present. Here air is filtered and its temperature changes according to body temperature.