What is the functions of mucus and fine hair in the nasal cavity ?
CH-LIFE PROCESSES
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Fine hair and mucus act as the first line of defense in the nasal passage. They keep foreign particles that could cause illness from entering the body. The hairs (cilia) and mucus along the nasal cavity are responsible for trapping dust and other particles in the air you inhale and sweeping it out again.
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Mucus helps to stop the germs to get inside the lungs and hair stops the dirt and dust
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