July's Muscle of the Month

Latissimus Dorsi

Origin: 

•      Inferior angle of scapula, spinous processes of last six thoracic vertebrae, last three or four ribs, thoracolumbaraponeurosis, & posterior iliac crest

Insertion: 

•       Intertubercular groove of the humerus

Nerve:  

•       Thoracodorsal C6, 7, 8

Action: 

•       Extend the shoulder, adduct the shoulder, medially rotate the shoulder

                  

 When Do You Use Your

Latissimus Dorsi?

-  Paddling a kayak                       -  Zipping the back of a dress

      -  Walking with crutches              -  Climbing a rope