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
My Name Is Jack My Name Is Jack "My Name Is Jack" is a song written by American record producer John Simon and released as a single by British group Manfred Mann in 1968. Their version reached number 8 on UK record charts. It became an international Top 10 hit, however, in the U.S., the song reached only #104. The lyrics and music were written by John Simon, and his own version was included on the soundtrack of the 1968 film "You Are What You Eat". The song tells the story of a resident of the " Greta Garbo Home for Wayward Boys and