Function of mucus and cilia in the respiratory system (help)
As the title states really, I can't find anything that makes sense online about this. It is for my revision notes 
Mucus in the respiratory system is for trapping microbes that are potentially pathogenic/harmful or which can transmit communicable disease, and large particles entering your lungs and causing damage and/or irritation.
Cilia are for “wafting” the mucus out of the trachea and bronchi, and moving the mucus (and particles/microbes trapped by it) out of the respiratory system and into the throat, where it’s swallowed or expelled by the body.
Cilia are for “wafting” the mucus out of the trachea and bronchi, and moving the mucus (and particles/microbes trapped by it) out of the respiratory system and into the throat, where it’s swallowed or expelled by the body.
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