Dissection of left parotideomasseteric region

Parotid gland and branches of facial nerve, lateral view

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Image #63-2

Dissection of left parotideomasseteric region

Parotid gland and branches of facial nerve, lateral view

The skin and subcutaneous tissues have been removed and the parotideomasseteric fascia cut away. The orbicularis oculi muscle (2) has been reflected anteriorly from the temporal region and the risorius muscle reflected inferiorly in the masseteric region.

1. Frontalis muscle
2. Orbicularis oculi muscle
3. Palpebral branch inferior Infraorbital nerve
4. Transverse part of nasalis muscle
5. Angular head of levator labii superioris muscle
6. Nasal branch of angular artery
7. Angular artery
8. Ala nasi (note insertion of fibers of angular head of levator labii superioris muscle)
9. Infraorbital head of levator labii superioris muscle
10. Zygomatic head of levator labii superioris muscle
11. Zygomaticus muscle
12. Orbicularis oris muscle
13. External maxillary artery and depressor anguli oris (triangularis) muscle
14. Depressor labii inferioris muscle
15. Temporalis fascia
16. Zygomaticotemporal branch zygomatic nerve and zygomatico-orbital artery
17. Superficial temporal artery
18. Auriculotemporal nerve
19. Temporal branch facial nerve
20. Superficial temporal vein (not injected)
21. Position of zygomatic arch
22. Zygomatic branches facial nerve
23. Parotid gland
24. Accessory parotid gland
25. Buccal branch facial nerve
26. Parotid duct
27. Remnant of parotideomasseteric fascia
28. Buccal branch facial nerve
29. Masseter muscle
30. Anterior facial vein
31. Buccinator muscle