Supraspinatus Anatomy

Supraspinatus Muscle

Origin: Supraspinous fossa of scapula
Insertion: Superior facet of the greater tubercle of the humerus
Actions: Abduction of arm
Innervation: Suprascapular nerve (C5, C6)
Blood Supply: Suprascapular artery from the thyrocervical trunk and the dorsal scapular artery.

Primary Actions of the Supraspinatus Muscle

Primary Actions of the Supraspinatus

1. Abduction of the arm at the shoulder


  • Deltoid (middle fibers)


  • Latissimus Dorsi
  • Pectoralis Major
  • Teres Major
  • Triceps Brachii (long head)