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.
The main function of the bronchi and bronchioles is to carry air from the trachea into the lungs. Smooth muscle tissue in their walls helps to regulate airflow into the lungs. When greater volumes of air are required by the body, such as during exercise, the smooth muscle relaxes to dilate the bronchi and bronchioles.here are 3 major parts of the respiratory system: the airway, the lungs, and the muscles of respiration. The airway, which includes the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles, carries air between the lungs and the bodyâs exterior. The lungs...