Trachea the trachea. The trachea is no more than 4mm diameter during the first year of life, expanding to its adult diameter by late childhood. The trachea is more mobile and of more variable length, deeper, and smaller in children. The trachea is lined with a layer of pseudostratified ciliated columnar epithelium. The epithelium contains goblet cells, which are glandular, modified simple columnar epithelial cells that produce mucins, the main component of mucus. Mucus helps to moisten and protect the airways. Mucus lines the ciliated cells of the trachea to trap inhaled foreign particles that the cilia then waft upward toward
The Body in the Library earlier, Anne Meredith knows Ariadne Oliver as the writer of a book called "The Body in the Library". In the first episode of the second series ("And the Moonbeams Kiss the Sea") of the television series "Lewis," the body of a handyman is found in the Bodleian Library. DS James Hathaway comments to DI Robbie Lewis, "You realise what we've got, don't you, sir. ... The body in the library." The 1984 television film "The Body in the Library" was part of the BBC series of "Miss Marple", with Joan Hickson making the first of her acclaimed appearances in the