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
Heather (given name) Heather (given name) Heather is a common English speaking nation given name, for girls. The name Heather actually refers to a variety of small shrubs with pink or white flowers which commonly grow in rocky areas that is literally referred to as Heather, in English. The brush is native to Scotland and England, but it is more commonly found in Scotland due to its rocky territories. The name is derived from Middle English "hather". Heather has several other definitions. The most commonly known is as a reference to a color mixture, it is most often a pale shade of blue