Secondary bronchus

Secondary bronchi decrease in diameter and each layer becomes thinner, as the bronchi progress into the lungs. 100x

Secondary bronchi decrease in diameter and each layer becomes thinner, as the bronchi progress into the lungs. 100x

Secondary bronchi decrease in diameter and each layer becomes thinner, as the bronchi progress into the lungs. 100x

Secondary bronchi decrease in diameter and each layer becomes thinner, as the bronchi progress into the lungs. 100x

Secondary bronchi decrease in diameter and each layer becomes thinner, as the bronchi progress into the lungs. 100x

Secondary bronchi decrease in diameter and each layer becomes thinner, as the bronchi progress into the lungs. 100x

Secondary bronchi decrease in diameter and each layer becomes thinner, as the bronchi progress into the lungs. 100x

This image was taken from a slide in the University of Michigan slide collection.