EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hair in your nose and mucus help to trap dust, bacteria, and other materials from going into your lungs when you breathe in.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Tiny hairs in the nose called cilia (SIL-ee-uh) filter out dust and other particles.
Detailed explanation-2: -The whole system of airways is lined with a thin layer of sticky mucus that traps dust particles, bacteria and other pollutants. Tiny hairs called cilia sweep mucus from your nasal cavity into the back of your throat where it can be swallowed and neutralized in your stomach.
Detailed explanation-3: -(i) Fine hair and mucus are present in the nasal passage so that any dust particles, pathogens etc., can be trapped in here and only clean air will enter the lungs. This is one of the defence mechanism of our body.
There is 1 question to complete.