Choose the correct answer from the alternatives given. Which of the following line the mucous membrane and help filter and eliminate particulates?
A
Cilia
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B
Villi
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C
Alveoli
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D
Bronchi
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Solution
The correct option is A Cilia Hairlike structures called cilia line the mucous membrane. They move the particles trapped in the mucus out of the nose and thereby help filter and remove particles that enter the respiratory pathway. So, the correct option is 'cilia'.