What is an example of the lung system?

An example of the lung system is the human respiratory system, which includes the lungs, airways, and diaphragm. The lungs facilitate gas exchange by inhaling oxygen from the air and expelling carbon dioxide, a waste product of metabolism. The airways, including the trachea and bronchi, transport air to and from the lungs, while the diaphragm aids in the process of breathing by contracting and relaxing to create pressure changes in the thoracic cavity.