State the reason for the presece of fine hair and mucus present in the nasal passage
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The hair present in the nasal cavity helps as the air impurities get stuck in it and mucus present in the nasal cavity helps by adding moisture to the air we inhale
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Fine hair and mucus act as the first line of defense in the nasal passage. They keep foreign particles that could cause illness from entering the body. The hairs (cilia) and mucus along the nasal cavity are responsible for trapping dust and other particles in the air you inhale and sweeping it out again. They work in the same way as an air filter does on a motor vehicle's engine.
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