Question

what is the role of mucus ?
class-10
simple words
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Answer 1

Answer:

Abstract. The airway surface liquid (ASL), often referred to as mucus, is a thin layer of fluid covering the luminal surface of the airway. The major function of mucus is to protect the lung through mucociliary clearance against foreign particles and chemicals entering the lung.

Answer 2

Answer:

To lubricate(grease) he food, so that it may go through the food pipe (alimentary canal)

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