slideshow: rotator cuff

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  • The Rotator Cuff

  • The Shoulder Girdle consists of 2 bones

  • The Scapula

    The ClavicleThe Shoulder Girdle consists of 2 bones

  • The Scapula

    The ClavicleThe Shoulder Girdle consists of 2 bones

  • The rotator cuff muscles surround the proximal humerus and move the arm in different directions

  • There are four rotator cuff muscles

  • Anterior View

  • SubscapularisAnterior View

  • SubscapularisAnterior View

  • SubscapularisArises from the anterior or ventral surface of the scapulaAnterior View

  • SubscapularisArises from the anterior or ventral surface of the scapulaAnterior ViewAttaches onto the lesser tuberosity of the humerus

  • SubscapularisArises from the anterior or ventral surface of the scapulaAnterior ViewAttaches onto the lesser tuberosity of the humerus

    Internally rotates the arm

  • SubscapularisArises from the anterior or ventral surface of the scapulaAnterior ViewAttaches onto the lesser tuberosity of the humerus

    Internally rotates the armSupplied by Upper and Lower Subscapular Nerves

  • SubscapularisArises from the anterior or ventral surface of the scapulaAnterior ViewAttaches onto the lesser tuberosity of the humerus

    Internally rotates the armSupplied by Upper and Lower Subscapular Nerves

  • SupraspinatusArises from the supraspinous fossa on the posterior or dorsal aspect of the scapula

  • SupraspinatusArises from the supraspinous fossa on the posterior or dorsal aspect of the scapulaInserts onto the superior facet on the Greater Tuberosity of the Humerus

  • SupraspinatusArises from the supraspinous fossa on the posterior or dorsal aspect of the scapulaInserts onto the superior facet on the greater tuberosity of the humerusAbducts the Arm

  • SupraspinatusArises from the supraspinous fossa on the posterior or dorsal aspect of the scapulaInserts onto the superior facet on the greater tuberosity of the humerusAbducts the ArmSupplied by the Suprascapular nerve

  • SupraspinatusArises from the supraspinous fossa on the posterior or dorsal aspect of the scapulaInserts onto the superior facet on the greater tuberosity of the humerusAbducts the ArmSupplied by the Suprascapular nerve

  • Superior or birds eye view of shoulder jointRight side

  • Superior or birds eye view of shoulder jointAnteriorRight side

  • Superior or birds eye view of shoulder jointAnteriorPosteriorRight side

  • Superior or birds eye view of shoulder jointRight side

  • Superior or birds eye view of shoulder jointScapulaRight side

  • Superior or birds eye view of shoulder jointHumerusScapulaRight side

  • Superior or birds eye view of shoulder jointScapulaRight side

  • Superior or birds eye view of shoulder jointCoracoidRight side

  • Superior or birds eye view of shoulder jointCoracoidAcromionRight side

  • Superior or birds eye view of shoulder jointCoracoidAcromionSupraspinous FossaRight side

  • Superior or birds eye view of shoulder jointCoracoidAcromionSupraspinatusMuscleRight side

  • Posterior View

  • Posterior View

  • Posterior ViewInfraspinatus

  • Posterior ViewInfraspinatusOriginates from the Infraspinous Fossa on posterior or dorsal aspect of Scapula

  • Posterior ViewInfraspinatusOriginates from the Infraspinous Fossa on posterior or dorsal aspect of scapulaInserts onto the middle facet on the greater tuberosity of the humerus

  • Posterior ViewInfraspinatusOriginates from the Infraspinous Fossa on posterior or dorsal aspect of scapulaInserts onto the middle facet on the greater tuberosity of the humerus Externally rotates the arm

  • Posterior ViewInfraspinatusOriginates from the Infraspinous Fossa on posterior or dorsal aspect of scapulaInserts onto the middle facet on the greater tuberosity of the humerus Externally rotates the armSupplied by Suprascapular Nerve

  • Posterior ViewInfraspinatusOriginates from the Infraspinous Fossa on posterior or dorsal aspect of scapulaInserts onto the middle facet on the greater tuberosity of the humerus Externally rotates the armSuprascapular Nerve

  • Posterior View

  • Posterior View

  • Posterior ViewTeres Minor

  • Posterior ViewTeres MinorOriginates from the superior part of lateral border of scapula

  • Posterior ViewTeres MinorOriginates from the superior part of lateral border of scapula Inserts onto the inferior facet on greater tuberosity of humerus

  • Posterior ViewTeres MinorOriginates from the superior part of lateral border of scapula Inserts onto the inferior facet on greater tuberosity of humerus Externally rotates the arm

  • Posterior ViewTeres MinorOriginates from the superior part of lateral border of scapula Inserts onto the inferior facet on greater tuberosity of humerus Externally rotates the armSupplied by Axillary nerve

  • Posterior ViewTeres MinorOriginates from the superior part of lateral border of scapula Inserts onto the inferior facet on greater tuberosity of humerus Externally rotates the armAxillary nerve

  • Summary of muscles

  • Anterior Chest Wall

    SubscapularisOriginSubscapular fossa of scapulaInsertionLesser tuberosity of humerusActionInternal rotation and adduction of the armNerve SupplyUpper and lower subscapular nerves (C5, C6 and C7)Blood SupplySubscapular artery

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  • Posterior Chest Wall

    SupraspinatusOriginSupraspinous fossa of scapulaInsertionSuperior facet on greater tuberosity of humerusActionAbduction of armNerve SupplySuprascapular nerve (C4, C5 and C6)Blood SupplySuprascapular artery

  • Posterior Chest Wall

    InfraspinatusOriginInfraspinous fossa of scapulaInsertionMiddle facet on greater tuberosity of humerusActionExternally rotates armNerve SupplySuprascapular nerve (C5 and C6)Blood SupplySuprascapular and circumflex scapular arteries

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