Are the Lungs Hollow?
Yes, the lungs are hollow organs that are part of the respiratory system. They are located in the chest cavity and are responsible for the exchange of oxygen and carbon dioxide in the body. The lungs are made up of air sacs called alveoli, which are surrounded by blood vessels. When we breathe in, oxygen enters the lungs and is absorbed into the bloodstream, while carbon dioxide is expelled when we breathe out. The hollow structure of the lungs allows for this exchange of gases to occur efficiently.