Nostrils - The two openings of the nose that enables the entry and exit of air and other gases through the nasal cavities., Cilia - A natural part of the human body that helps prevent potential allergens and other foreign objects like dust from entering the nostrils. This also help keep air moist as it comes to the nasal passages., Nasal Cavity - The part of the nose which has a layer of produced sticky liquid called mucus., Mucus - Naturally produced in the lining of the nasal cavity which function is to trap dust particles and germs that may enter the nose., Olfactory Bulb - A bulb-like structure inside the nose which sends signals to the brain to identify the smell of air particles.,

Science 3 Nose: Parts & Functions

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