What Happens to a Dust Particle That Is Too Large

question 43

Multiple Choice

What happens to a dust particle that is too large to stay airborne and land in the alveoli?

• A)It lands in the bronchi, where it is absorbed.
• B)It lands in the mucociliary ladder, where it is moved to the trachea to be exhaled.
• C)It lands in the respiratory bronchiole, where it is coughed out.
• D)It lands in the mucociliary ladder, where type II macrophages phagocytize them.
• E)It lands in the mucociliary ladder and moves to the pharynx to be swallowed.

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