How is respiratory passage kept free of dust particles
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When the air enters into respiratory passage it first enters into nasal cavity here there are small hair present and this purifies the air(the dust particles are stuck to it) and also the temperature of air is brought near to the body temperature.
Thus,the respiratory canal is free from dust particles
Thus,the respiratory canal is free from dust particles
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Answer:
When the air enters into respiratory passage it first enters into nasal cavity here there are small hair present and this purifies the air(the dust particles are stuck to it) and also the temperature of air is brought near to the body temperature.
Explanation:
When the air enters into respiratory passage it first enters into nasal cavity here there are small hair present and this purifies the air(the dust particles are stuck to it) and also the temperature of air is brought near to the body temperature.
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