Terminal bronchiole

We often overlook the intricate architecture that is involved in shaping our very own existence and being. Here is a terminal bronchiole within the lungs of a mouse, recovering from a strenuous battle with influenza A virus (IAV). The lung tissue section was stained with antibodies against IAV (pink) and the cells were stained with a blue dye. You can see the heart-shaped airway surrounded by the lacey structure of airspaces in the lung.