The Innate Defence Mechanism That Prevents Particles from Entering the Lungs

question 35

Multiple Choice

The innate defence mechanism that prevents particles from entering the lungs is/are the

• A)mucociliary escalator.
• B)alveolar macrophages.
• C)tonsillar lymphocytes.
• D)IgA in mucus.
• E)all of the above.

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