TMJ Anatomy

Question 1

Which 2 bones make up the TMJ?

Answer 1

TEMPORAL BONE - mandibular fossa and articular tubercle
+
MANDIBLE - head / condyle

Question 2

The TMJ is the articulation between:
the head of the _____________,
the mandibular ___________,
and the articular ___________ / ____________.

Answer 2

MANDIBLE
\+
FOSSA
\+
TUBERCLE / EMINENCE

Question 3

What type of joint is the TMJ?

Answer 3

SYNOVIAL - MODIFIED HINGE

Question 4

The thin and loose capsule of the TMJ has ligaments and the articulation includes the __________ ______ aka?

Answer 4

ARTICULAR DISC
aka
MENISCUS

Question 5

Normal functioning of the __________ __________ is needed for proper movement/control/positioning of the articular disc.

Answer 5

LATERAL PTERYGOID

Question 6

What is the close packed position of the TMJ?

Answer 6

TEETH TIGHTLY CLENCHED

Question 7

What is the loose packed position of the TMJ?

Answer 7

TEETH 2 - 5 MM APART, TIP OF TONGUE RESTING BEHIND FRONT TEETH ON ROOF ON MOUTH

Question 8

What is the capsular pattern of the TMJ?

Answer 8

LIMITED MANDIBULAR DEPRESSION