Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Arthrology > TMJ > Flashcards

TMJ Flashcards

1
Q

temporomandibular joint type

A

synovial
diarthrosis
CONDYLOID & HINGE & PLANE
biaxial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

artic surfaces of TMJ joint

A

CONVEX condyles of mandible

CONCAVE mandibular fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

movements of TMJ

A

depression (jaw opening)
elevation (jaw closing)
lateral deviation
protraction
retraction
slight rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

upper joint = what type of joint

A

plane (gliding)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

lower joint =

A

hinge (ginglymus)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is the unique feature of the TMJ

A

the fibrocartilaginous articular disc that separates the synovial cavity of the joint into a superior cavity and inferior cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

the disc moves ________ as the mouth opens

A

forward

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what happens first when you open jaw

A

disc is still in place

rotation occurs - hinge action predominates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what happens when jaw is opened widely

A

hinge and gliding actions combined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what bones make up TMJ

A

temporal bone
mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

articular surfaces ** of TMJ

A

articular disc
articular tubercle
mandibular fossa
mandibular condyle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

TMJ ligaments (2)

A

fibrous capsule (med & lat collateral)
temporomandibular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

TMJ accessory ligaments

A

stylomandibular
sphenomandibular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

TMJ disc

A

fibrocartilaginous disc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what ligament limits protrusion

A

stylomandibular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

as the mouth opens, rotation of the mandibular condyles occurs around lower joint space

A

followed by translation of articular disc on the upper joint space down to the articular eminence

17
Q

loose packed of TMJ

A

mouth slightly open, lips together, teeth not in contact

18
Q

close packed position of TMJ

A

teeth tightly clenched

19
Q

capsular pattern of restriction

A

limitation of mouth opening

20
Q

normal end feels

A

opening = tissue stretch
closing = bone to bone

21
Q

what action does temporalis do

A

closes jaw, moves jaw backwards

22
Q

what action does medial pterygoid

A

closes jaw
elevation and protraction of mandible

23
Q

what actions does masseter do

A

closes jaw
elevates mandible during chewing & clenches teeth

24
Q

what actions does the lateral pterygoid do

A

opens jaw
protraction of mandible

25
Q

what are the 3 accessory muscles of the TMJ

A

buccinator
SCM
digastric

Arthrology (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions