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 'A' by Anonymous My Name Is 'A' by Anonymous My Name Is 'A' by Anonymous, also known by the alternate release titles of My Name Is 'A' and Alyssa: Portrait of a Teen Killer, is a 2012 thriller film that was directed and written by Shane Ryan. The film originally released on 19 October 2012 at the PollyGrind Film Festival, where it received an award for "Best Art House Film". The movie is loosely based on a 2009 murder by then 15-year-old Alyssa Bustamante, who killed her 9-year-old neighbor Elizabeth Olten. Alyssa (Katie Marsh) is a troubled young teen who spends her days