Anatomy: TMJ

Question 0

What is the name for the type of joint action?

Answer 0

Ginglymosrthroidal joint

Sliding action

Question 1

What type of joint is the TMJ?

Answer 1

Synovial but lined by fibrocartilage tissue

Question 2

What are the three ligaments assorted with the TMJ?

Answer 2

Sphenomandibular ligament
Stylomandibular ligament
Pterygomandub ligament
Temporomandib ligament

Question 3

What are the three portions of the art halt disk?

Answer 3

Anterior
Intermidete
Posterior

Question 4

What is the nerve suppl to TMJ?

Answer 4

Capsule and periphery Auriclotemporal nerve which is a branch of CNV3

Question 5

When does the TMJ begin to develop?

Answer 5

10 weeks IU

From separate condylar and temporal cartilaginous blastema with intervening mesenchyme which differentiates into fibrous tissue.
Clefts develop in fibrous tisse which gives the two joint spaces and disk

Question 6

What forms the spheno mandibular ligament?

Answer 6

Meckels cartilage

Question 7

T/F the TMJ develops via intramentous ossification?

Answer 7

T

Meckels cartilage provides a frame

Question 8

At what age does the mandibular symphysis fuse?

Answer 8

2

Question 9

T/F the mandible remodels through life?

Answer 9

T

This is because there are many cartilaginous growth centres which fuse as 20