Muscle: Supraspinatus
Proximal Attachment: Supraspinous fossa of
scapula
Distal Attachment: Superior facet of
greater tubercle
of humerus
Innervation: Suprascapular nerve (C4,
C5, C6)
Main Action(s): Initiates and assists deltoid in abduction of arm and acts with rotator cuff muscles