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 This? This’ song, “Mind My Have Still I” from their "Squeezed", was also featured on the soundtrack to the movie "The Wild Life". Their second album, which featured a cover of the Spinners hit “I'll Be Around”, was produced by Todd Rundgren, who also played Fairlight Synthesizer on the record. “I'll Be Around” was released as a single and video; it peaked at No. 62 on the Billboard Hot 100. What Is This? What Is This (known prior to 1980 as Anthym) was a rock band that originated in Fairfax High School in California and would play numerous shows along the