Brainscape's Knowledge GenomeTM

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


See full index

MSK System > Shoulder > Flashcards

Shoulder Flashcards

1
Q

What type of joint is the shoulder?

A

Ball and socket

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

What bones make up the shoulder?

A

Humerus

Scapula

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

What is the ball of the shoulder joint?

A

Head of the humerus

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

What is the socket of the shoulder joint?

A

Glenoid fossa on the scapula

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

What is the anterior process on the scapula?

A

Coracoid process

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

What is the posterior process on the scapula?

A

Acromion process

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

What makes the shoulder unstable?

A

Shallow glenoid fossa
Disproportion of articular surfaces
Multiplanar movements
Lax capsule

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

How is stability achieved in the shoulder?

A

Rotator cuff muscles
Ligaments
Capsule

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

What are the attachments of the shoulder capsule?

A

Glenoid labrum + margins of glenoid fossa
Anatomical neck of humerus
Bridges the intertubular groove

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

Where is there a small opening of the capsule?

A

Anteriorly

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

Why is there a small opening?

A

Synovial membrane of shoulder joint communicates with supscapular bursa

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

What does the synovial membrane line in the shoulder?

A

Capsule
Intracapsular bone - up to edge of articular cartilage
Tendon of long head of biceps in joint cavity

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

What are the intracapsular ligaments?

A

3 gleno-humeral ligaments

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

Where do the the gleno-humeral ligaments lie?

A

From glenoid labrum to the humerous

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

What is the function of the gleno-humeral ligaments?

A

Reinforce the capsule anteriorly

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

What are the extracapsular ligaments?

A

Coracoacromial ligament
Coracohumeral ligament
Transverse humeral ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where does the coracoacromial ligament run?

A

Between acromion and coracoid process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where does the coracohumeral ligament run?

A

From base of coracoid process to anterior part of greater tubercle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the function of the transverse humeral ligament?

A

Holds the tendon of the long head of biceps in place during shoulder movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the coracoacromial arch?

A

Strong structure of bone and ligament that overlies the humeral ligament

21
Q

What makes up the coracoacromial arch?

A

Coracoacromial ligamen t
Acromion
Coracoid process

22
Q

What is the function of the coracoacromial arch?

A

Prevents upper displacement of the humerus

23
Q

What muscles make up the rotator cuff?

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

24
Q

Which rotator cuff muscles arise on the dorsal aspect of the scapula?

A

Supraspinatus
Infraspinatus
Teres minor

25
Q

Where do the dorsal rotator cuff muscles insert?

A

Greater tubercle of humerus

26
Q

Which rotator muscle arises on the ventral aspect of the scapula?

A

Subscapularis

27
Q

Where does the ventral rotator cuff muscle insert?

A

Lesser tubercle of the humerus

28
Q

Why are they called rotator cuff muscles?

A

Tendons of the muscles form a cuff - which fuses with the capsule and strengthens it

29
Q

Which other muscles stabilise the shoulder joint?

A

Deltoid
Long head of biceps
Long head of triceps

30
Q

What is a bursa?

A

Fluid filled sac

31
Q

What are the main bursae in the shoulder?

A

Subacromial

Subscapular

32
Q

What is the function of the subacromial bursa?

A

Facilitates movement of the supraspinatus tendon under the coracoacromial arch and deltoid

33
Q

What is the function of the subscapular bursa?

A

Facilitates movement of the subscapularis tendon over scapula

34
Q

How much space is there between the acromion and head of humerus?

A

1-1.5cm

35
Q

What sits in the space between the acromion and head of humerus?

A

Subacromial bursa
Supraspinatus tendon
Capsule
Tendon of long head of biceps

36
Q

What provides blood supply to the shoulder joint?

A

Anterior circumflex humeral artery
Posterior circumflex humeral artery
Subscapular artery

37
Q

What is the nerve supply to the shoulder joint?

A

Axillary nerve
Suprascapular nerve
Lateral pectoral nerves

38
Q

Which 2 joints supply movement to the shoulder?

A

Glenohumeral joint

Scapulothoracic joint

39
Q

Which joint controls first 90 degrees abduction?

A

Glenohumeral joint

40
Q

Which joint controls abduction above 90 degrees?

A

Scapulothoracic joint

41
Q

Which muscle is responsible for 0-15 degrees abduction?

A

Supraspinatus

42
Q

Which muscle is responsible for 15-90 degrees abduction?

A

Deltoid (central fibres)

43
Q

Which muscles are responsible for abduction above 90 degrees?

A

Trapezius

Serratus anterior

44
Q

Which muscles are responsible for extension of the shoulder?

A

Deltoid (posterior fibres)
Latissmus dorsi
Teres major

45
Q

Which muscles are responsible for flexion of the shoulder?

A

Pec major (clavicular head)
Deltoid (anterior fibres)
Corachobrachialis
Biceps brachii

46
Q

Which muscles are responsible for adduction of the shoulder?

A

Pec major
Latissimus dorsi
Teres major

47
Q

Which muscles are responsible for medial rotation?

A

Pec major (sternal head)
Subscapularis
Teres major
Latissimus dorsi

48
Q

Which muscles are responsible for lateral rotation?

A

Infraspinatus

Teres minor

MSK System (25 decks)

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