The cilia of the trachea transfer:

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(A) The trachea is lined with a pseudostratified ciliated columnar epithelium containing goblet cells that secrete mucus. The cilia present on these e

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Mucus into the pharynx

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(A) The trachea is lined with a pseudostratified ciliated columnar epithelium containing goblet cells that secrete mucus. The cilia present on these epithelial cells beat in a coordinated manner to move the mucus,along with trapped dust particles and pathogens,upwards towards the pharynx. Once the mucus reaches the pharynx,it is either swallowed or coughed out,thereby protecting the lungs from infection and obstruction.

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