A client is admitted with a severe respiratory infection. Which of the following would not be true about the respiratory mechanisms that defend against infection?
1. The respiratory tract cools and filters the air being breathed.
2. Cilia lining the respiratory tract sweep debris out of that area.
3. Respiratory tract cells secrete lysozymes that can destroy certain bacteria.
4. Macrophages engulf and destroy bacteria found in the alveoli.
ANS: 1
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