for travel outside the united states canada puerto rico and the u s virgin islands the change fee for delta marketed flights is typically $ 200 to $ 500 but can vary based on location and type of farechanges are usually permitted only to the return portion of an international itineraryased on the fare rules you may have to pay a service fee and or a difference in fare for travel within the 50 united states canada puerto rico and the u s virgin islands the fee is $ 200 for delta marketed flights
bronÂ·chiÂ·ecÂ·taÂ·sis. Chronic dilation of bronchi or bronchioles as a sequel of inflammatory disease or obstruction often associated with heavy sputum production. Synonym(s): bronchiectasia. [bronchi- + G. ektasis, a stretching]. /bronÂ·chiÂ·ecÂ·taÂ·sis/ (brongâ³ke-ekÂ´tah-sis) chronic dilatation of one or more bronchi.
A pulmonary lobule is the portion of the lung ventilated by one bronchiole. Bronchioles are approximately 1mm or less in diameter and their walls consist of ciliated cuboidal epithelium and a layer of smooth muscle. Bronchioles divide into even smaller bronchioles, called terminal, which are 0.5mm or less in diameter.he diameter of the bronchioles is often said to be less than 1 mm, though this value can actually range from 5 mm to 0.3 mm. As stated, these bronchioles do not have hyaline cartilage to maintain their patency. Instead, they rely on elastic fibers attached to the surrounding lung tissue for support.