Mucous Membranes Are Quite Thin and Fragile

question 50

Multiple Choice

Mucous membranes are quite thin and fragile. How can such delicate tissue provide defense against microbial invaders?

• A) The mucus is a physical trap that contains a variety of antimicrobial chemicals.
• B) The mucus contains a variety of antimicrobial chemicals and molecules.
• C) Both the mucus and the outer layer of cells are shed frequently.
• D) The mucus secreted by the mucous membrane physically traps microbes.
• E) The mucus physically traps microbes, contains a variety of antimicrobial chemicals, and is shed constantly, along with the outermost layer of cells.

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