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