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origin - T7-L5insertion - humerusinnervation - thoracodorsal nerveblood supply - thoracodorsal artery, dorsal perforating branches of 9-11 posterior intercostal, subcostal, and first three lumbar arteriesaction - extend, adduct, and medially rotate humerus (MEA L)

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1.
origin - T7-L5

insertion - humerus

innervation - thoracodorsal nerve

blood supply - thoracodorsal artery, dorsal perforating branches of 9-11 posterior intercostal, subcostal, and first three lumbar arteries

action - extend, adduct, and medially rotate humerus (MEA L)





 
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