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| The ear allow us to hear and helps to maintain our sense of balance. It is divided in three parts- outer, middle and inner ear. |
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| The nose acts mainly as an air conditioner to warm, clean and moisten the air entering the lungs. it also detects smell. |
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| the throat runs down from oral cavity to the top of food pipe (oesophagus) and the opening of voicebox (larynx). |
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