left supraspinatus
Muscular systemUpper limbLeftFMA32545
Nomenclature
left supraspinatus
musculus supraspinatus (Latin)
muscolo sovraspinato sinistro (Italian)
Descriptionentry
Muscle of the supraspinous fossa of the scapula, the superior component of the rotator cuff.
Functionentry
Abduction of the arm in the first degrees; stabilises the humeral head in the glenoid.
Originentry
Supraspinous fossa of the scapula.
Insertionentry
Superior facet of the greater tubercle of the humerus.
Innervationentry
Suprascapular nerve (C5-C6).
Blood supplyentry
Suprascapular artery.
Clinical notes
Its tendon is the commonest site of rotator cuff tear and of subacromial impingement.
Model