Question detail
Explain how the bronchi contribute to the body's defence against pathogens.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Communicable diseases
Question
Explain how the bronchi contribute to the body's defence against pathogens.
Answer
The bronchi contribute to the body's defence by producing mucus that traps pathogens and foreign particles. Additionally, the cilia lining the bronchi help to move the mucus upwards towards the throat, where it can be cleared from the respiratory tract.
Explanation
This answer effectively explains the dual role of mucus production and ciliary action in the bronchi's defence mechanism. The question assesses the student's understanding of the specific functions of the bronchi in the immune response.
Common mistake
Misunderstanding the Role of Mucus
Students often describe the trachea and bronchi only in terms of their structure and fail to mention the role of mucus in trapping pathogens.
Emphasize that the trachea and bronchi produce mucus, which traps pathogens and prevents them from entering the lungs, highlighting their function as a non-specific defence system.
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