Answer:
Lobar (secondary) bronchi
Trachea
Segmental (tertiary) bronchi
Bronchioles
Main (primary) bronchi
Step-by-step explanation:
Ex.
The structure described as having about ten in each lung, small amounts of cartilage and dominated by smooth muscle are segmental (tertiary) bronchi.
Once inside the lungs, each main bronchus subdivides into lobar (secondary) bronchi—three on the right and two on the left—each supplying one lung lobe. The lobar bronchi branch into third-order segmental (tertiary) bronchi, which divide repeatedly into smaller and smaller bronchi (fourth-order, fifth-order, etc.). Passages smaller than 1 mm in diameter are called bronchioles (“little bronchi”), and the tiniest of these, the terminal bronchioles, are less than 0.5 mm in diameter.