Respiratory bronchiole
An edge of a terminal bronchiole is seen transitioning into a respiratory bronchiole. 100x
Terminal bronchiole
An edge of a terminal bronchiole is seen transitioning into a respiratory bronchiole. 100x
Respiratory bronchiolar wall
An edge of a terminal bronchiole is seen transitioning into a respiratory bronchiole. 100x
- Associated alveoli
An edge of a terminal bronchiole is seen transitioning into a respiratory bronchiole. 100x
Pulmonary artery
An edge of a terminal bronchiole is seen transitioning into a respiratory bronchiole. 100x
Macrophages >
Macrophages, filled with black carbon particles, are seen scattered in the connective tissue surrounding the bronchioles. Such macrophages are called “dust cells.”