| Origin |
Spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, iliac crest, and inferior 3 or 4 ribs
|
| Insertion |
Floor of intertubercular groove of humerus
|
| Action |
Extends, adducts, and medially rotates humerus; raises body toward arms during climbing
|
| Innervation |
Thoracodorsal nerve (C6, C7, and C8)
|
Arterial
Supply |
Thoracodorsal artery
|
The medical illustrations contained in this online The medical illustrations contained in this online atlas are copyrighted © 1997 by the University of Washington.
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