1. TEMPORAL REGION

2. Temporal Lines Superior: Inferior:
For attachment of temporalis fascia.
Inferior:
For attachment of temporalis muscle.

3. Boundaries Superior and posterior boundary: Anterior boundary:
Inferior temporal line.
Anterior boundary:
Frontal process of zygomatic.
Inferior:
Zygomatic arch.

4. Floor
Greater wing of sphenoid.
Squamous temporal.
Frontal.
Parietal.

5. Contents Temporalis muscle. Deep temporal nerve and arteries.
Zygomaticofacial nerve.

7. Muscles of Mastication
General characteristics:
All innervated by mandibular branch of CN V.
Masseter:
Zygomatic bone to lateral surface of ramus and coronoid process.
Elevates and protracts mandible.

9. Muscles of Mastication
Lateral pterygoid:
Lateral pterygoid plate and sphenoid to front of mandible and TMJ.
Protracts mandible; depresses chin (bilateral).
Grinding (unilateral).

10. Muscles of Mastication
Medial pterygoid:
Lateral pterygoid plate and maxilla to medial surface of mandible near angle.
Elevates, protracts (bilateral).
Grinding (unilateral).

12. Muscles of Mastication
Temporalis:
Temporal fossa and fascia to coronoid process.
Elevates and retracts mandible.

14. Temporomandibular Joint
Synovial joint:
Between head of mandible (condyloid process) and mandibular fossa of temporal bone.
Intervening cartilage:
Divides joint into superior and inferior compartments.
Allows mandible to protract and retract as well as elevate and depress.

18. TMJ Ligaments Temporomandibular ligament: Stylomandibular ligament:
Base of zygomatic process to mandibular neck.
Stylomandibular ligament:
Styloid process to angle of mandible.
Runs between parotid and submandibular glands.

19. TMJ Ligaments Sphenomandibular ligament:
Sphenoid spine to mandibular lingula.
Lies medial to TMJ.