Shoulder CHP. 10 Flashcards
1
Q
What are the four Rotator cuff muscles?
A
Supra-spinatus
Infra-spinatus
Teres Minor ‘
Subscapualris
2
Q
What is the action of the Supraspinatus?
A
performs shoulder abduction
3
Q
What is the action of the infraspinatus?
A
shoulder external rotation and horizontal abduction
4
Q
What is the action of the teres Minor
A
Shoulder external rotation and horizontal abduction
5
Q
What is the action of the subscapularis?
A
shoulder internal rotation
6
Q
What is the action of the Pectoralis major?
A
shoulder adduction,
Internal rotation,
horizontal adduction
7
Q
What is the action of the serratus anterior?
A
scapular protraction, upward rotation
8
Q
What does weakness of the serratus anterior cause?
A
winging of the scapula
