A 6-Year-Old Boy Playing in a Dusty Field in Windy

question 222

Multiple Choice

A 6-year-old boy playing in a dusty field in windy weather inhales many small particles that become lodged in his terminal bronchioles.  Which of the following respiratory components is most important in clearing these particles?

• A)Ciliated cells
• B)Goblet cells
• C)Macrophages
• D)Submucosal glands
• E)Type I pneumocytes
• F)Type II pneumocytes