Nasal passages
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Nasal passage contains mucus and hairs
Nasal mucus purifies the air by killing bactirias
Nasal hair warms up the air so that easy diffusion can take place in between alveoli
Nasal passage is a very much well defined lining of the respiratory system
It starts from
Nosetrills-nasal cavity-pharynx-larynx-trachea-bronchi-bronchioles-alveoli
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