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ADA NBDE National Board Dental Part I

Category - NBDE

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In emphysema, which of the following components of the bronchioles is affected?

Ciliated cuboidal epithelial cells
Clara cells
elastic fibers
goblet cells

Explanation

Answer: C - Elastic fibers are destroyed in emphysema by elastase. This protease is released by neutrophils recruited by macrophages under an abnormal stimulus, such as cigarette smoke.

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ADA NBDE National Board Dental Part I

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ADA NBDE National Board Dental Part I

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