Dissection of lungs in situ

Left lung.

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Image #125-4

Dissection of lungs in situ

Left lung.

The upper lobe has been dissected from its medial aspect and has been retracted laterally.

1. Trachea
2. Aortic arch
3. Superior vena cava
4. Pericardium
5. Ascending aorta
6. Left superior pulmonary vein (note anterior intersegmental branches to upper lobe)
7. Pulmonary trunk
8. Upper pointer: Left auricle Lower pointer: Latex cast in left inferior pulmonary vein at entrance into left atrium)
9. Left atrium (interior visible through openings cut in wall)
10. Right atrium
11. Left ventricle
12. Right ventricle
13. Internal thoracic artery
14. Left phrenic nerve
15. Apex of lung
16. Left superior intercostal vein (not tributary accompanying left phrenic nerve)
17. Anterior mediastinal lymph node
18. Apical branch left pulmonary artery
19. Posterior apical segmental bronchus (apical subsegmental branch)
20. Anterior lateral branch left pulmonary artery
21. Upper pointer: Anterior segmental bronchus Lower pointer: Lingular branch superior left pulmonary artery
22. Anterior descending branch left pulmonary artery
23. Branches superior lingular bronchi
24. Intersegmental vein
25. Upper lobe left lung
26. Oblique fissure
27. Lingula of left lung
28. Lower lobe left lung