Infratemporal Fossa and TMJ

Question 1

What does the medial pterygoid N. of V3 innervate?

Answer 1

Tensor veli Palatini M.

Tensor Tympani M.

Question 2

What is the maxillary A.’s relationship to the pterygoid Ms.?

Answer 2

Lateral to lateral pterygoid

Medial to medial pterygoid

Question 3

Muscles responsible for elevating the mandible?

Answer 3

Temporalis

Masseter

Medial pterygoid

Question 4

Muscles responsible for depressing the mandible

Answer 4

Lateral Pterygoids

Suprahyoid

Infrahyoid

Question 5

Muscles responsible for protrusion of mandible?

Answer 5

Lateral Pterygoid

Medial Pterygoid

Masseter

Question 6

Muscles responsible for retrusion of mandible?

Answer 6

Temporalis

Masseter

Question 7

Muscles responsible for lateral movements of mandible?

Answer 7

Ipsilateral temporalis and masseter

Contralateral pterygoids

Question 8

What action do the stylomandibular and sphenomandibular ligament prevent?

Answer 8

Excess anterior protrusion of TMJ

Question 9

What is the attachment of the superior head of the lateral pterygoid?

Answer 9

Articular disc of TMJ

Question 10

At what angle is the TMJ dislocated anteriorly?

Answer 10

>15 degrees

Question 11

Dental nerve blocks target what nerves?

Answer 11

Anterior and middle superior alveolar nerve

Posterior Superior alveolar nerve