Teres Major

Teres Major

Teres major is only functional when the Rhomboids fix the scapula. This muscle mainly helps the Latissimus dorsi.

  • Origin: Lower 1/3 of the lateral border of the scapula.
  • Insertion: Intertubercular goove (between the greater and lesser tubercles) of the humerus.
  • Actions: Shoulder adduction.
    Internal rotation.
    Shoulder extension.
  • Innervation: Lower subscapular nerve.
  • Daily uses: Tuck the back of your shirt into your trousers.
  • Example strengthening exercises â€“ Shoulder internal rotation.
  • Example stretches –  External rotation stretch.
Scroll to Top