Definition: The Latissimus dorsi, or back muscle, is the largest muscle in the upper body. It extends from the spine, hip and ribs to the upper arm.
Origin: The spinous processes of thoracic T7-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs
Insertion: The intertubercular groove of the humerus bone
Its prime function is to extend, adduct, and rotate the arm medially and move the shoulder down and back.
Exercises to Strengthen the Latissimi Dorsi
