Question

    What are the small, hair-like structures in the upper

    part of the respiratory tract called?
    A Cilia Correct Answer Incorrect Answer
    B Villi Correct Answer Incorrect Answer
    C Alveoli Correct Answer Incorrect Answer
    D Bronchi Correct Answer Incorrect Answer

    Solution

    Cilia are microscopic hair-like structures lining the respiratory tract, playing a crucial role in protecting the lungs by trapping and expelling foreign particles, including dust and microbes.

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