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Origins Insertions And Actions Of Muscles

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mhall128's version from 2017-07-07 00:07

Origins Insertions And Actions of Muscles of the Shoulder

 

MuscleOriginInsertionAction
TrapeziusOccipital bone, Spinous process of C7-T12Clavical, Acromium and Spine of the scapulaeextends head- raises, rotates and retracts scapula
Coracobrachialislateral aspect of the apex of coracoid process in scapulamedial aspect of the mid shaft of humerusflexion of the arm at the shoulder
Rhomboideus MajorSpinous Process of T2-T5Medial border of scapulaeRetracts & elevates scapulae
Rhomboideus MinorSpinous Processes of C7-T1Medial Border of scapulaRetracts and Elevates Scapulae
Deltoidlateral 1/3 of clavicledeltoid tuberosity of humerusprime mover for arm abduction
Pectoralis MinorAnterior surface of ribs 3-5coracoid process of scapuladraws scapula forward and inferiorly
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