Supraspinatus

This is unpublished
Supraspinatus.

Origin: Supraspinous fossa of scapula
Insertion: Superior facet on greater tuberosity of humerus
Action: Initiates and assists deltoid in abduction of arm and acts with other rotator cuff muscles
Innervation: Suprascapular nerve (C4, C5 and C6)
Arterial Supply: Suprascapular artery

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Upper Extremity