Shoulder 2 Flashcards
1
Q
What are the rotator cuff muscles?
A
Supraspinatus
Infraspinatus
Subscapularis
Teres minor
2
Q
What do the rotator cuff muscles do?
A
Stabilize the shoulder joint and maintain the capsule.
3
Q
Which muscle is responsible for internal rotation?
A
Subscapularis
4
Q
Name 3 intracapsualar structures.
A
Long head of biceps
Glenoid labrum
Synovial membrane
5
Q
Name the muscles responsible for abduction from 0-180
A
0-15: Supraspinatus
15-110: deltoid
110-180 (upward rotation): Trapezius and serratus anterior.
6
Q
What are the benefits of arterial anastomoses between subclavian
and axillary?
A
Provide alternate blood supply to the upper limb during occlusion that happens during movement.
