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Kines > Tmj > Flashcards

Tmj Flashcards

1
Q

Considered to be the most frequently used joint in
the body

A

Tmj

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2
Q

Mainly used for chewing, swallowing, yawning,
and talking

A

Tmj

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3
Q

Also considered as synovial type of joint

A

Tmj

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4
Q

 known as Craniomandibular joint

A

Tmj

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5
Q

The two main bones involved in the formation
of the temporomandibular joint are the

A

Mandible and temporal

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6
Q

The temporal bone forms the superior
part of the joint with two components:

A

Mandibular fossa and articular tubercle

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7
Q

The inferior part of the joint is formed
mainly by the head of the

A

Mandible

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8
Q

bony landmarks of
the mandible surrounding tmj

A

Convex mandibular condyle

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9
Q

Concavity

A

Mandibular fossa

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10
Q

Right anterior of the mandibular fossa is
the protuberance known as the

A

Articular eminence

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11
Q

convex
articular part of tmj

A

Articular eminence

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12
Q

presence of
fibrocartilage rather than hyaline cartilage in
the tmj is very significant coz fibrocartilage can
actually repair and remodel itself (coz tmj is
prone to wear and tear)

A

Articular disc

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13
Q

is a complex synovial joint with two convex
surfaces articulating during movement
 Joint is divided into two compartments:
superior and inferior

A

Tmj

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14
Q

occurs gliding,
translating or sliding movement
- Composed of articular
eminence (plane joint

A

Upper cavity

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15
Q

composed of
mandibular condyle (simple hinged joint)
- Occurs rotation

A

Lower cavity

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16
Q

allows for a more congruent and
stable joint (increase stability while minimizing
loss of mobility)

A

Articular disc

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17
Q

Unique feature of tmj is the presence of
________ (biconcave in shape)

A

Articular disc

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18
Q

Articulation

A

o Articular Eminence
o Mandibular Condyle

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19
Q

upper and lower joint separated by

A

Articular disc

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20
Q

comprise of superior
surface of the disc and the articular
eminence of joint

A

Upper joint

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21
Q

allows 3
degrees of freedom with gliding
motion

A

Upper joint

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22
Q

Plane, triaxial, larger

A

Upper joimt

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23
Q

comprise of inferior
surface of the disc and the
mandibular condyle

A

Lower joint

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24
Q

-Hinge type of joint
- Modified Hinge
- Uniaxial

A

Lower joimt

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25
There are two structures in the temporal bone.
Mandibular Fossa Articular Eminence
26
is Thinner and Translucent; Hence, it is not the true articulation.
Mandibular fossa
27
Thus it is the best articular structure for the TMJ
Articular eminence
28
 Horses shoe Shaped  Largest Facial Bone
Mandible
29
Attachment of temporalis muscle
Coronoid process
30
Fast Healing o This allows for the TMJ to repair and remodel itself
Fibrocartilage
31
Dense, Avascular, Collagenous tissue
Fibrocartilahe
32
Function of fibrocarti
Superficial-gliding Deep- withsand stress Women 587N (60kgF)  Men 847N (86kgF)
33
Increase stability of the joint
Articular disc
34
Thinnest portion is the middle (Force Accepting Segment)
Articular disc
35
is attached medially and laterally to the pole (lateral pole and medial pole)
Disc
36
Anterior of mandible
Superior tendon of lateral Pterygoid Muscle
37
Posterior
Bilaminar Retrodiscal padj
38
limits the disc if it moves anteriorly
Inferior retrodiscal pad
39
maintains the shape of articular disc; resist tensile force
Collagen
40
contributes to disc regaining its form during unloading
Elastic
41
attracts water; shock absorber; disc resiliency
GAGS
42
Does Not Repair or Remodel itself
Bilamimar retrodiscal pad
43
Force accepting segment: middle portion (thinnest)
middle portion of the Articular Disc
44
 Middle segment o avascular, aneural o Most force accepting
Middle segment of articular disc
45
Temporomandibular ligament 2 portion
46
Acts as a suspensory ligament, supporting the mandible.
Oblique portion
47
Strongest - Reinforces of the lateral portion of TMJ
Horizontal
48
Considered the weakest of the TMJ ligaments.
Stylomandibular
49
Provides reinforcement to the middle portion of the TMJ.
Sphenomandibular
50
Attachment of oblique
Condyle neck, articular eminence
51
Attachment of oblique
Condyle neck, articular eminence
52
Attachment of sphenomandibular
Spine of sphenoid and mid ramus
53
Motions of oblique and horizontal
Both retrusion
54
Motions of stylomandibular and sphenomandibular
Both protrusion
55
is a fibrous sac that surrounds and encloses the TMJ.
Fibrous capsule
56
The anterior, medial, and posterior aspects of fibrous capsule are
Thin and loose
57
Lateral of fib capsule
Stronger
58
Inferior External Pterygoid Suprahyoid (Digastric) What is action
Depression
59
Temporalis, Internal P. ,Masseter Superior Ext P.
Elevation
60
Internal P. ,Masseter, External P.
Protrusion
61
Post Temporalis Ant Digastric
Retrusion
62
Same: Temporalis Opposite - Pterygoids
Lateral excursions
63
Infrahyoid mm
HYOID STABILIZER
64
Specific Exercises that involve the mouth that aid in relief of TMJ discomfort
Rocabado exercise
65
goes into extension
Upper joint
66
goes into flexion
Lower joint
67
Primary muscles
Temporalis Internal medial pterygoid Masseter Externa; lateral pyterygoid TIME
68
Joint issue
Arthrogenic
69
o Most common TMJ Disorder
Myofascial pain
70
Discomfort/ Pain in Jaw Muscles, Neck, Shoulder
Myofascial pain
71
 Inflammatory  Capsular Fibrosis  Osseous Mobility  Disc Problem
Internal derangement
72
Pain and Inflammation in Synovial Tissue
Synovitis
73
 May lead to capsular fibrosis
Capsulitis
74
Deflection to Ipsilateral (Stretching)
Capsulitis
75
 Recurring Ailment  Deflection to Ipsilateral  Limited Lateral Deviation  No Clicking
Capsular fibrosis
76
Unable to close mouth
Dislocation

Kines (3 decks)

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