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Questions and Answers
What is the function of the mucus coating in the respiratory, gastrointestinal, and urogenital tracts?
What is the function of the mucus coating in the respiratory, gastrointestinal, and urogenital tracts?
- To provide nutrients
- To trap and prevent the entry of microorganisms (correct)
- To regulate body temperature
- To aid in digestion
Which of the following is the main physical barrier that prevents the entry of microorganisms into our body?
Which of the following is the main physical barrier that prevents the entry of microorganisms into our body?
- Blood vessels
- Muscles
- Bones
- Skin (correct)
Which of the following is NOT mentioned as a physical barrier against microorganisms?
Which of the following is NOT mentioned as a physical barrier against microorganisms?
- Muscles (correct)
- Mucus coating
- Epithelium lining
- Skin
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