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
What Is Life the Harrison YouTube channel and other media platforms. A live version of the song, recorded with Eric Clapton and his band in December 1991, is available on Harrison's 1992 album "Live in Japan" album. The performance was recorded at Tokyo Dome on 17 December, during the final show of the tour. Part of a concert performance of "What Is Life" from Harrison's 1974 North American tour with Shankar is included in Scorsese's "George Harrison: Living in the Material World". While challenging the commonly held view that this controversial 1974 tour was a "disaster", Simon Leng writes of a Fort Worth