Temporomandibular Joint Flashcards Preview

Board Review: General Anatomy Specific Joint Anatomy > Temporomandibular Joint > Flashcards

Flashcards in Temporomandibular Joint Deck (16):
1

What type of joint is the temporomandibular joint?

Atypical synovial

2

What is the classification for the temporomandibular joint?

Compound hinge and gliding joint

3

The temporomandibular joint is covered by what?

Fibrocartilage instead of hyaline

4

Fibrocartilage is more resistant to what?

Damage and can regenerate

5

What seperates an upper (above disc) from a lower (below disc) compartment?

Intra-articular disc

6

What movement occurs in the upper compartment?

Protraction and retraction (gliding)

7

What movement occurs in the lower compartment?

Elevation and depression (hinge)

8

What bones are involved in the temporomandibular joint?

Condyle of Mandible
Mandibular fossa
Articular eminence of temporal bone

9

What is the ROM for temporomandibular joint?

Elevation
Depression
Protraction
Retraction
Side to side

10

What muscles are acting during elevation of the temporomandibular joint?

Temporalis
Massetar
Medial Pterygoig

11

What muscles are acting during depression of TMJ?

Mylohyoid
Digastric
Lateral Pterygoid

12

What muscles are acting during protraction of TMJ?

Lateral pterygoid
Anterior part of temporalis
Superficial fibers of masseter

13

What muscles are acting during retraction of TMJ?

Posterior part of temporalis
Deep part of masseter

14

During side to side movement what muscles are being used in TMJ?

Pterygoids acting alternately

15

What part of the lateral pterygoid is partially inserted into the anterior portion of intra-articular disc?

Superior part

16

What N innervates TMJ?

Auriculotemporal
Deep Temporal
Masseteric branches of CN V3