Temporomandibular Joint and Parotid Region

1. Mastoid process
2. Styloid process
3. Stylomastoid foramen
4. External acoustic meatus
5. Postglenoid tubercle
6. Madibular fossa
7. Articular tubercle
8. Condyle
9. Mandibular notch
10. Masseteric artery
11. Masseteric nerve
12. Coronoid process
13. Articular capsule
14. Superior synovial cavity 5. Articular Disk
15. Inferior synovial cavity
16. Superior head of lateral pterygoid
17. Inferior head of lateral pterygoid
18. Posterior fibers of temporalis
19. Anterior fibers of temporalis
20. Facial nerve
21. Auriculotemporal nerve
22. Communicating branch (parasympathetics)
23. Posterior belly digastric
24. Stylohyoid muscle
25. Lesser occipital nerve
26. Great auricular nerve
27. Parotid Gland

Mandible

1. condyle - site of insertion for inferior head lateral pterygoid muscle
2. neck - anterior to external auditory canal
3. coronoid process - insertion of temporalis muscle
4. mandibular notch - transmits masseteric artery and nerve to masseter muscle
5. ramus - lateral boarder of infratemporal fossa, retromandibular vein, maxillary artery, parotid gland
6. angle - near level of lingula (medial surface)
7. body - most commonly broken bone in males, fracture puts inferior alveolar nerve and artery at risk
8. inferior alveolar process - base of teeth
9. mandibular foramen - transmits inferior alveolar nerve and artery into mandible, inferior to lingula
10. lingula - site of attachment of sphenomandibular ligament
11. digastric fossa - origin of anterior belly of digastric muscle
12. superior and inferior mental spine - origin of genioglossus and geniohyoid muscles
13. sphenomandibular ligament - from spine of sphenoid to lingula, limits depression of the mandible
14. mental foramen - transmits mental nerve and artery (continuation of inferior alveolar nerve)
15. inferior alveolar nerve and artery - provides the inferior dental plexus
16. inferior dental plexus
17. temporalis muscle - arises from temporal fossa, medial to zygomatic arch, inserts on coronoid process and anterior ramus
18. masseter muscle - arises from zygomatic arch, inserts on lateral body and angle of mandible
19. medial pterygoid muscle - originates from medial aspect of lateral pterygoid plate, inserts on medial body
20. mental nerve and artery