Left infraorbital, labial and buccal regions

Nerves and muscles of upper lip

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Image #66-7

Left infraorbital, labial and buccal regions

Nerves and muscles of upper lip

A portion of the quadratus labii superioris muscle has been reflected superiorly (12).

1. Angular head of levator labii superioris muscle
2. Naris
3. Ala nasi
4. Septal branch of angular artery
5. Filament of internal nasal branch of infraorbital nerve
6. Artery of nasal septum (branch of superior labial artery)
7. Orbicularis oris muscle
8. Upper lip
9. Superior labial branches infraorbital nerve
10. Infraorbital head of levator labii superioris muscle
11. Angular artery
12. Part of levator labii superioris muscle which inserted into skin of upper lip (reflected superiorly)
13. Depressor anguli oris muscle
14. Zygomaticus muscle
15. Superior labial artery and labial glands
16. Angle of mouth