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The supraspinatus is one of the four Rotator Cuff muscles. The four Rotator Cuff muscles are:
ATTACHMENTS:
- The supraspinatus attaches from the supraspinous fossa of the scapula to the greater tubercle of the humerus.
ACTIONS:
- Abducts the arm at the glenohumeral joint
- Flexes the arm at the glenohumeral joint
NOTES:
- The Supraspinatus is the first “S” of SITS (Supraspinatus, Infraspinatus, Teres minor, Subscapularis), an acronym for the rotator cuff group.
- The distal tendon of the supraspinatus is often impinged between the head of the humerus and the acromion process of the scapula. When this occurs it is called shoulder impingement syndrome.
