what is the role of hair and mucus inside the nose
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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.
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The hair present in our nose prevents dust particles from reaching our lungs through trachea and mucous present in it warms the air. Hope this helps you ☺.
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