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Bronchial Tree Parts
Respiratory Therapy Midland College
| Name of Airway | Rank, Gen., Zone, Airway Type |
|---|---|
| Trachea | I: 0th Generation, Conducting Zone, Cartilaginous Airway |
| Main Stem Bronchi | II: 1st Generation, Conducting Zone, Cartilaginous Airway |
| Lobar Bronchi | III: 2nd Generation, Conducting Zone, Cartilaginous Airway |
| Segmental Bronchi | IV: 3rd Generation, Conducting Zone, Cartilaginous Airway |
| Subsegmental Bronchi | V: 4th-9th Generation, Conducting Zone, Cartilaginous Airway |
| Bronchioles | VI: 10-15th Generation, Conducting Zone, Noncartilaginous Airway |
| Terminal Bronchioles | VII: 16th-19th Generation, Conducting Zone, Noncartilaginous Airway |
| Respiratory Bronchioles | VIII: 20th-23rd Generation, Respiratory Zone, Site of Gas Exchange |
| Alveolar Ducts | IX: 24th-27th Generation, Respiratory Zone, Site of Gas Exchange |
| Alveolar Sacs | X: 28th Generation, Respiratory Zone, Site of Gas Exchange |