Rotator Cuff Muscles Flashcards
Where is the Origin of the Supraspinatus?
Superior spine of the scapula
Where is the Insertion of the Supraspinatus?
Superiorly on the head of the humerus
What joint does the Supraspinatus cross?
Shoulder
What are the actions of the Supraspinatus?
Assists deltoid in abduction of the arm. A weak lateral rotator
Where is the Origin of the Infraspinatus?
Inferior spine of the scapula
Where is the Insertion of the Infraspinatus?
Laterally on the head of the humerus
What joint does the Infraspinatus cross?
Shoulder
What is the Action of the Infraspinatus?
Lateral rotation of the arm
Where is the Origin of the Teres Minor?
Lateral border of the scapula near the inferior angle
Where is the Insertion of the Teres Minor?
Laterally on the head of the humerus
What joint does the Teres Minor cross?
Shoulder
What is the Action of the Teres Minor?
Lateral rotation of the arm
Where is the Origin of the Subscapularis?
Anterior surface of the scapula
Where is the Insertion of the Subscapularis?
Anteriorly on the head of the humerus
What joint does the Subscapularis cross?
Shoulder
