Sometimes bronchoscopy is used to treat lung problems. It may be done to insert a stent in an airway. An airway stent is a small tube that holds the airway open. It's used when a tumor or other condition blocks an airway. In children, the procedure most often is used to remove something blocking an airway.
Spanning the border from Minnesota into the Canadian provinces of Ontario and Manitoba, Lake of the Woods is an enormous body of water over 68 miles long, 59 miles wide, with 25,000 miles of shoreline-the world's longest lake shoreline.
Yellowstone Lake is the largest lake at high elevation (i.e., more than 7,000 ft.) in North America with a surface area of about 84,000 acres of 132 square miles; it is a natural lake, situated at 7,733 ft above sea level.