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Mucus

usgb/ˈmjuːkəs/Volume
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Body DefensePlay
Mucus serves as a protective barrier against dirt and germs in respiratory pathways. SlideDuring allergy season, my nasal passages produce more mucus to trap pollen.
LampPro Tip 2/3
Color IndicatorsPlay
The color of mucus can indicate health status; clear is normal, yellow or green may suggest infection. SlideThe doctor asked about the color of my mucus to check for signs of infection.
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Context MattersPlay
While 'mucus' is a medical term, it's commonly used in everyday language when discussing illness. SlideI've been coughing up a lot of mucus; I think I'm getting a cold.