Trachea annular ligaments of trachea. The epiglottis closes the opening to the larynx during swallowing. The trachea develops in the second month of development. It is lined with an epithelium that has goblet cells which produce protective mucins (see "Respiratory epithelium"). An inflammatory condition, also involving the larynx and bronchi, called croup can result in a barking cough. A tracheotomy is often performed for ventilation in surgical operations where needed. Intubation is also carried out for the same reason by the inserting of a tube into the trachea. From 2008, operations have experimentally transplanted a windpipe grown by stem cells, and
Less Commonly Taught Languages individuals interested in less commonly taught languages" founded in 1990 and based at the Indiana University Bloomington. The Council's mission is to increase the number of Americans who choose to learn one or more of the less commonly taught languages (LCTLs) as a means of enhancing cross-cultural communication among citizens of the United States . ... The Council seeks to improve the teaching and learning of these languages and to make them more generally available. The Council is the national voice for organizations and individuals who represent the teaching of these less commonly taught languages at both the collegiate and