Dissection of left infratemporal and pterygopalatine fossae

External pterygoid muscle, lateral view

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Image #65-3

Dissection of left infratemporal and pterygopalatine fossae

External pterygoid muscle, lateral view

The pterygoid plexus of veins has been resected.

1. Origin of temporalis muscle
2. Zygomatic bone
3. Anterior deep temporal nerve (cut across)
4. Maxillary nerve (V) in depths of pterygopalatine fossa
5. External pterygoid muscle (superior fascicle)
6. Deep anterior temporal artery (cut across)
7. Superior posterior alveolar nerve
8. Internal maxillary artery
9. Superior posterior alveolar artery
10. Buccinator nerve
11. External pterygoid muscle (inferior fascicle)
12. Buccal artery
13. Internal pterygoid muscle
14. Tendon of temporalis muscle
15. Buccinator muscle
16. Mandible
17. Posterior deep temporal nerve (cut across)
18. Upper pointer: Zygomatic process (cut across) Lower pointer: Joint capsule of mandible
19. External acoustic meatus
20. Masseteric nerve
21. Auriculotemporal nerve
22. Deep posterior temporal artery (cut off)
23. Anastomotic branch auriculotemporal nerve with facial nerve
24. Temporofacial division of facial nerve (VII)
25. Superficial temporal artery (cut across)
26. Cervicofacial division of facial nerve (VII)
27. Parotid branches of transverse facial artery
28. Posterior facial vein (cut across)
29. Sphenomandibular ligament
30. Inferior alveolar artery
31. Inferior alveolar nerve
32. Lingual nerve
33. Compact bone surrounding mandibular canal
34. Posterior belly of digastric muscle
35. Superior deep cervical lymph nodes