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.
It divides into two principle bronchi, tubes which conduct air into the lungs, and they divide into two lobar bronchi for the left lung, and into four lobar bronchi for the right lung. These further divide into smaller bronchi and bronchioles within the lung tissue. The structure of the larger bronchi is identical to that of the trachea. On the smaller bronchi the C-shaped cartilage rings are gradually replaced by irregular plaques of cartilage. Bronchioles have no cartilage at all. The bronchioles are less than 1mm in diameter, and undergo further divisions, the last of which is characterised by the loss of goblet cells.