Teres major is only functional when the Rhomboids fix the scapula. This muscle mainly helps Latissimus dorsi.
- Lower 1/3 of the lateral border of the scapula.
- Intertubercular goove (between the greater and lesser tubercles) of the humerus.
- Shoulder adduction
- Internal rotation
- Shoulder extension.
- Lower subscapular nerve.
- Tucking the back of your shirt into your trousers.