Extrinsic shoulder muscles

Subdecks (10)

Cards (167)

  • Trapezius origin

    occipital bone, nuchal ligament, spinous process of thoracic vertebrae
  • Trapezius insertion
    clavicle, acromion, spine of scapula
  • Trapezius action of superior, middle, inferior parts
    Superior: elevates scapula
    Middle: retracts scapula
    Inferior: depress scapula
    superior and inferior: rotate glenoid cavity superiorly
  • Trapezius innervation
    Cranial nerve 11 - accessory nerve (R/L)
  • Deep-Latissimus dorsi origin

    spinous process of inferior thoracic, all lumbar, and saccral vertebrae, ribs 8-12, thoracolumbar fascia
  • Latissimus dorsi insertion
    intertubercular sulcus
  • latissimus dorsi action
    extend, adduct, medially rotate humerus
  • latissimus dorsi innervation
    thoracodorsal nerve
  • Deep-rhomboid major origin
    spinous process of T2-T5
  • Rhomboid major insertion
    medial border of scapula
  • rhomboid major action
    adduct the scapula, tilt glenoid cavity inferiorly
  • Rhomboid major innervation
    Dorsal scapular nerve
  • Deep- rhomboid minor origin
    nuchal ligament, spinous process (C7-T1)
  • Rhomboid minor insertion
    medial border of scapula
  • Rhomboid minor action
    adduct the scapula, tilt glenoid cavity inferiorly
  • Rhomboid minor innervation
    dorsal scapular nerve