Left infraorbital, labial and buccal regions

Branches of infraorbital nerve, anterolateral view

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Image #67-2

Left infraorbital, labial and buccal regions

Branches of infraorbital nerve, anterolateral view

The quadratus labii superioris muscle has been almost completely removed and the periosteum has been scraped from exposed bony surfaces.

1. External nasal branch anterior ethmoidal nerve
2. Nasomaxillary suture
3. Frontal process of maxilla
4. External nasal branch anterior ethmoidal nerve
5. Lateral nasal cartilage
6. Greater alar cartilage
7. Lesser alar cartilage
8. Angular head of levator labii superioris muscle (cut off)
9. Ala nasi
10. Naris
11. External nasal branches infraorbital nerve
12. Artery of nasal septum
13. Skin of philtrum
14. Depressor septi nasi muscle
15. Orbicularis oris muscle
16. Superior labial branches Infraorbital nerve
17. Inferior palpebra
18. Orbicularis oculi muscle (cut off)
19. Orbital branch of angular artery
20. Orbital septum
21. Artery which was situated in periosteum
22. Inferior palpebral branches of infraorbital nerve
23. Infraorbital head of levator labii superioris muscle (cut off)
24. Infraorbital artery
25. Internal nasal branch of infraorbital nerve
26. Anastomosis of buccal branches of facial nerve (cut off) with infraorbital nerve
27. Caninus muscle
28. Buccinator muscle