14.2 Temporal Fossa and TMJ

Question 1

Identify the temporal is muscle, its function, and innervation.

Answer 1

Closes and retracts the jaw.

Innervated by V3 (Mandibular motor branch of Trigeminal)

Question 2

Identify the following ligaments of the TMJ:
Lateral ligament
Stylomandibular ligament
Sphenomandibular ligament

Answer 2

Lateral: the lateral thickening of the joint capsule.

Question 3

Identify the following components of the TMJ: 
Articular disk
Superior joint cavity
Inferior joint cavity
Condylar head of the mandible

Answer 3

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Question 4

Identify the masseter muscle, its function and innervation.

Answer 4

Closes and protrudes the mandible.

Innervated by motor branch of Mandibular nerve (V3)