shoulder and brachial plexus Flashcards
1
Q
fascia of pectoral region attached to:
A
- clavicle
- sternum
2
Q
- multiaxial
- diarthrosis (highly moveable but very unstable even with labrum, cavity only contacts 1/3 head of humerus)
A
ball and socket
3
Q
fibrocartilage rim that deepens socket/provides stability
A
glenoid labrum
4
Q
hyaline cartilage
A
humeral head & glenoid cavity of scapula articular surfaces
5
Q
muscle tone of rotator cuff muscles keep humeral head in place
A
rotator cuff muscles
6
Q
subscapularis
A
anterior rotator cuff muscles
7
Q
- supraspinatus
- infraspinatus
- teres minor
A
posterior rotator cuff muscles
8
Q
articular capsule has 2 parts:
A
- loose fibrous capsule
- synovial membrane
9
Q
- margins of glenoid cavity
- anatomical neck of humerus - encloses the long head of the biceps tendon
A
loose fibrous capsule
10
Q
- between the tubercles of the humerus for passage of the biceps tendon
- anteriorly, inferior to the coracoid process
- allows communication of subtendinous bursa of subscapularis and the synovial cavity
A
synovial membrane
11
Q
- coracoacromial ligament
- coracohumeral ligament
- tendons (supraspinatus)
A
superiorly glenohumeral reinforcement
12
Q
- glenohumeral ligaments
- tendons (subscapularis)
A
anteriorly glenohumeral reinforcement
13
Q
- tendons (infraspinatus, teres minor)
A
posteriorly glenohumeral reinforcement
14
Q
tendons rub against acromion
A
impingement syndrome
15
Q
bony growth and act like sandpaper on tendons
A
bone spurs
