TMJ (p. 293) pt. 2

Question 1

What is the mandibular fossa? Where is it found?

Answer 1

An oval depression in the temporal bone, just anterior to the external auditory meatus

Question 2

Mandibular fossa, aka

Answer 2

Glenoid fossa

Question 3

What is the condyloid process? Where is it found?

Answer 3

Extension of mandible that lies in the glenoid fossa

Question 4

What is the articular eminence? Where is it found?

Answer 4

Raised portion of the temporal bone just anterior to the glenoid fossa

Question 5

What is the articular disc?

Answer 5

A small, fibrous pad of dense collagen tissue

Question 6

What does the articular disc separate?

Answer 6

The articular space between the glenoid fossa and the condyle into upper and lower compartments

Question 7

Glenoid fossa, aka

Answer 7

Mandibular fossa

Question 8

Describe the upper surface of the articular disc

Answer 8

Concavo-convex to match the contours of the mandibular fossa and the articular eminence

Question 9

Describe the lower surface of the articular disc

Answer 9

Concave to match the contour of the condyle

Question 10

Describe the posterior band

Answer 10

Thicker posterior end of the articular disc

Question 11

What is the intermediate zone of the articular disc?

Answer 11

The thinnest part, found in the middle

Question 12

Describe the anterior end of the articular disc

Answer 12

Called the anterior band, thickens slightly towards the middle

Question 13

What are the regions above and below the articular disc?

Answer 13

Synovial cavities

Question 14

Describe the tissue in synovial cavities

Answer 14

Secrete synovial fluid for lubrication

Question 15

Fibers from the _____ _____ muscle insert into the disc

Answer 15

lateral pterygoid

Question 16

What is the thinnest portion of the articular disc called?

Answer 16

Intermediate zone