Latissimus dorsi
| Headline | the one you use for climbing |
|---|---|
| Action | Arm extension, adduction and medial rotation |
| Origin | Thoracolumbar fascia, spinous processes of lower 6 thoracic vertebrae |
| Insertion | intertubercular groove of humerus |
| Innervation | Thoracodorsal nerve (C6-8) |
