What Happens to a Dust Particle That Is Too Large

question 36

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

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Definitions:

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