A beautiful apocalyptic of the (human gas exchange system consists of the lungs, which are located in the thoracic cavity. The lungs are connected to the trachea, which branches into the left and right bronchi. The bronchi then branch into smaller airways called bronchioles. At the end of the bronchioles are tiny air sacs called alveoli, which are surrounded by a network of capillaries. The exchange of oxygen and carbon dioxide occurs across the walls of the alveoli and capillaries:1.3), by (Steven DaLuz and Durer:0.8), (Gouache and Chiaroscuro:0.8), (painting:0.3) | Painting