*The large open spaces are alveolar ducts. In a good longitudinal section, pulmonary alveoli making up their wall may be seen.

Slides 106, and 108 are from animals, and slide 33 is from a child. Each slide does not contain all the desired structures but between them, a total picture can be conceived. Slides 110 and 112 are from an adult male. The bronchi are much larger, and are typical for bronchi of those sizes.

=== Slide 33, Lung, bronchi, bronchioles, human child (H&E) ===