
Respiratory bronchiole
A respiratory bronchiole resembles a terminal bronchiole, except its layers are thinner and alveoli form an integral part of its wall. A respiratory bronchiole is lined by simple cuboidal epithelium with club cells and scattered cilia. Alveoli from adjacent respiratory bronchioles and alveolar ducts surround this bronchiole. 200x

Respiratory bronchiole
A respiratory bronchiole resembles a terminal bronchiole, except its layers are thinner and alveoli form an integral part of its wall. A respiratory bronchiole is lined by simple cuboidal epithelium with club cells and scattered cilia. Alveoli from adjacent respiratory bronchioles and alveolar ducts surround this bronchiole. 200x

Associated alveoli
A respiratory bronchiole resembles a terminal bronchiole, except its layers are thinner and alveoli form an integral part of its wall. A respiratory bronchiole is lined by simple cuboidal epithelium with club cells and scattered cilia. Alveoli from adjacent respiratory bronchioles and alveolar ducts surround this bronchiole. 200x

Adjacent alveoli
A respiratory bronchiole resembles a terminal bronchiole, except its layers are thinner and alveoli form an integral part of its wall. A respiratory bronchiole is lined by simple cuboidal epithelium with club cells and scattered cilia. Alveoli from adjacent respiratory bronchioles and alveolar ducts surround this bronchiole. 200x

Image source >
This image was taken of a slide from the University of Michigan collection.