9
•Right lung has 3 lobes – superior, middle, inferior•Left lung has 2 lobes – superior and inferior
Lobes are separated by fissures:• Oblique fissure in left lung • One oblique and one horizontal
fissure in right lung
Air Flow
1. Trachea2. Primary bronchi3. Secondary bronchi4. Tertiary bronchi5. Bronchioles6. Terminal bronchioles7. Respiratory bronchioles8. Alveolar ducts9. Alveoli
Supported by cartilage
No cartilage
Mostly pseudostratified columnar, goblet cells
Simple squamous cells
Often cuboidal, with or without cilia
