Brainscape's Knowledge GenomeTM

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


See full index

Functional Anatomy > Acromioclavicular Joint > Flashcards

Acromioclavicular Joint Flashcards

1
Q

What type of joint is the acromioclavicular joint?

A

Plane synovial

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

What is the function of the joint?

A

To connect the scapula to the clavicle

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

What are the articular surfaces of the joint?

A

Clavicle and Acromion

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

Describe the relation of the articular surfaces?

A

Flat facet at the lateral end of the clavicle with a flat facet on the anteromedial surface of the acromion

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

Is the clavicular surface convex or concave?

A

Convex

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

Is the acromion surface convex or concave?

A

Concave

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

What is the articular surfaces covered in?

A

Fibrocartilage

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

Describe the capsule?

A

Loose fibrous capsule

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

The capsule is thickest and strongest when it is reinforced by?

A

Trapezius

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

What lines the inner surface of the joint capsule?

A

Synovial membrane

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

What is the intra-articular structure involved in the joint?

A

Fibrocartilaginous Articular disc

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

What is the role of the articular disc?

A

To divide the joint cavity

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

What can the articular disc compensate for?

A

Small degree of incongruence between the articular surfaces

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

What are the ligaments involved in the joint?

A

Superior and Inferior acromioclavicular ligaments and coracoclavicular ligament

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

What are the two divisions of the coracoclavicular ligament?

A

Conoid and trapezoid

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

What is the stonger part of the coracoclavicular ligament?

A

Trapezoid

17
Q

What limits anterior movement of the scapula?

A

Conoid

18
Q

What limits posterior movement of the scapula?

A

Trapezoid

19
Q

What does the coracoclavicular ligament do?

A

Prevents the acromion from sliding inferomedially under the lateral end of the clavicle

20
Q

What is involved in the stability of the joint?

A

Coracoclavicular ligament, trapezius and deltoid muscles and capsular thickenings

21
Q

Protraction is limited by?

A

Trapezoid part of coracoclavicular ligament

22
Q

Retraction is limited by?

A

Conoid part of coracoclavicular ligament

23
Q

ROM for elevation and depression?

A

less than 15 degrees

24
Q

Elevation is limited by?

A

Tension in both parts of the coracoclavicular ligament

25
Q

Depression is limited by?

A

Coracoid process contacting inferior surface of the clavicle

26
Q

What is axial rotation associated with?

A

Medial and lateral rotation of scpaula

27
Q

What does axial rotation allow?

A

A flexed arm to become fully elevated

28
Q

What is axial rotation limited by?

A

Both parts of coracoclavicular ligament

Functional Anatomy (13 decks)

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