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origin - anterior clavicle, spine of scapulainsertion - humerusinnervation - axillary nerveblood supply - posterior circumflex humeral artery, deltoid branch of thoracic-acromial arteryaction - flex and medially rotate arm, abduct arm above 15 degrees, extend and laterally rotate arm (FAMEL)

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1.
origin - anterior clavicle, spine of scapula

insertion - humerus

innervation - axillary nerve

blood supply - posterior circumflex humeral artery, deltoid branch of thoracic-acromial artery

action - flex and medially rotate arm, abduct arm above 15 degrees, extend and laterally rotate arm (FAMEL)





 
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