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 More Can I Say What More Can I Say "What More Can I Say" is a song from rap artist Jay-Z's studio album "The Black Album". It was released as a street single simultaneously as the official single "Change Clothes". It premiered on Hot 97 on October 22, 2003 and was the first track from "The Black Album" to be heard by the public. The song includes additional vocals from Vincent "Hum V" Bostic and was produced by The Buchanans. The intro has a sampled monologue by Russell Crowe from the film "Gladiator", the song also samples "Something for Nothing" by MFSB from their