Homestead is a city within Miami-Dade County in the U.S. state of Florida, nestled between Biscayne National Park to the east and Everglades National Park to the west. Homestead is primarily a Miami suburb and a major agricultural area. Homestead was incorporated in 1913 and is the second oldest city in Miami-Dade County next to the city of Miami. It is located approximately 35 miles (56 km) southwest of Miami, and 25 miles (40 km) northwest of Key Largo.
Airways Inside the Lungs. Airways Inside the Lungs. The lungs' airways (bronchial tubes) divide into smaller and smaller branches (bronchioles). The airways end in air sacs (alveoli) where oxygen moves into the blood.
Three of the most common lung diseases in women are asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. Asthma is a chronic (ongoing) disease of the airways in the lungs called bronchial tubes. Bronchial tubes carry air into and out of the lungs. In people with asthma, the walls of these airways become inflamed (swollen) and oversensitive. The airways overreact to things like smoke, air pollution, mold, and many chemical sprays. They also can be irritated by allergens (like pollen and dust mites) and by respiratory infections (like a cold). When the airways overreact, they get narrower. This limits the flow of air into and out of the lungs and causes trouble breathing. Asthma symptoms include wheezing, coughing, and tightness in the chest.