A person who has smoked for a long time develops a chronic cough and frequent respiratory infections. Which physiological change in the respiratory tract mainly contributes to this increased susceptibility?
Subject: General Awareness | Topic: Science | Difficulty: MEDIUM
Options
- (A) Narrowing of the bronchi
- (B) Increased mucus production
- (C) Damage to the cilia of the upper respiratory tract (cilia)
- (D) Thickening of the bronchial walls
Verified Answer
Option (C): Damage to the cilia of the upper respiratory tract (cilia)
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