Question

7. What roles do the hair and the membrane of nasal cavity play?
Ans:​

Answer 1

Answer:

The nasal cavity is the inside of your nose. It is lined with a mucous membrane that helps keep your nose moist by making mucus so you won't get nosebleeds from a dry nose. There are also little hairs that help filter the air you breathe in, blocking dirt and dust from getting into your lungs.

Explanation:

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Answer 2

The mucous & hair present inside our nose traps dirt,dust particles &

prevent them from entering the respiratory system. Hence,hair & the membrane of the nasal cavity plays an imp. role in respiration & breathing.