Dissection of left infratemporal and pterygopalatine fossae

External pterygoid muscle, lateral view

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Image #65-3
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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