Latissimus dorsi
Proximal Attachment: Spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, iliac crest, and inferior 3 or 4 ribs
Distal Attachment: Floor of intertubercular sulcus of humerus
Innervation: Thoracodorsal nerve (C6, C7, C8)
Main Action(s): Extends, adducts, and medially rotates humerus; raises body toward arms during climbing