Origin: Supraspinous fossa of the Scapula

Insertion: Superior facet of greater tuberosity of the Humerus and the Glenohumeral Joint

Function: Assists the deltoid in abducting the arm, fixes the head of the humerus in the glenoid fossa, and external rotation of the shoulder along with other Muscles which produce shoulder Abduction

and Muscles which produce shoulder External (lateral) Rotation

Nerve: Suprascapular Nerve

Artery: Suprascapular (transverse cervical) artery

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