
Trachea

epithelium
| Name | Value |
|---|---|
| epithelium | pseudostratified ciliated columnar |

cells
- ciliated cells
- mucous cells
- basal cells
- serous cells
- type 1 brush cells
- intermediary cells (type 2 brush)
- Clara cells
- endocrine (Pa) cells

ciliated

mucous

mucus on cilia

basal

progenitor

serous

serous secretion around cilia

brush 1

microvilli

receptor and absorption?

intermediary

immature

Clara

surfactant

endocrine

APUD
