Rotator Cuff Muscle-Tendons

Rotator Cuff Muscle-Tendons

1. Surpaspinatus

   • origin: the supraspinous fossa of the scapula
     • insertion: greater tubercle of the humerus
       • actions (2): abduct shoulder (glenohumeral joint), stabilize head of the humerus in glenoid cavity

2. Infraspinatus

   • origin: the infraspinous fossa of the scapula
     • insertion: greater tubercle of the humerus
       • actions (3): adduct shoulder (g/h), laterally rotate shoulder g/h, stabilize head of the humerus in the glenoid cavity

3. Teres Minor

4. Suprascapularis (anterior)