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| 12058414017 | List zones of pulmonary tree in descending order | Trachea, bronchi, bronchioles, terminal bronchioles, respiratort bronchioles, alveolar ducts, alveolar sacs | 0 | |
| 12058414018 | Name conducting zones? | Bronchi, bronchioles, terminal bronchioles | 1 | |
| 12058414019 | Name transitional and respiratory zones? | Respiratory bronchioles, alveolar ducts, alveolar sacs |  | 2 |
| 12058414020 | An atomic dead space | Conducting zone 0-16 | 3 | |
| 12058414021 | Alveoli first appear at? | 17 to 19th generations aka transitional zone | 4 | |
| 12058414022 | Which generations are in the respiratory zone? | 20-22 are lined with alveolar ducts and sacs | 5 | |
| 12058414023 | Which bronchioles have alveoli? | Respiratory bronchioles have some... | 6 | |
| 12058414024 | What comprises the acinus? | 10-12 of respiratory bronchioles which each have about 100 ducts and 2000 alveoli sacs |  | 7 |
| 12058641037 | Trachea is supported by | Ventrolateral c shaped cartilage and dorsal smooth muscle | 8 | |
| 12058641038 | What are cartilage rings replaced by in the lungs | Irregular shaped cartilage plates that surround the bronchi as opposed to the C shapes | 9 | |
| 12058641039 | When do cartilage plates disappear? | Airways of 1mm | 10 | |
| 12058641040 | What secretes mucus? | Goblet cells | 11 | |
| 12058641041 | What replaces goblet cells in the respiratory zone? | Club cells that secrete proteins, lipids, glycoproteins and modulators of inflammation | 12 | |
| 12058641042 | What protein do club cells secrete? | Surfactant apoproteins | 13 | |
| 12064763333 | Interalveolar communication | Pores of khan | 14 | |
| 12064763334 | squamous epithelial cells | Type 1 alveolar cells | 15 | |
| 12064763335 | Which cell is larger? Which cell is more abundant? | Type 1 covers 95% of alveoli because it is larger even though type II are twice as abundant | 16 |
