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Origins Insertions And Actions Of Muscles

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cbainbridge9818's version from 2015-07-24 21:11

Origins Insertions And Actions of Muscles of the Shoulder

 

MuscleOriginInsertionActionInnervation
Trapeziusexternal occipital protuberane, Spinous process of C7-T12 lateral Clavical, Acromium and Spine of the scapulaecervical contralateral rotation, scapula elevation, depression, retractionCN XI
Levator ScapulaeTransverse processes of C1-C4superior anglecervical (ipsi)lateral bending ,cervical ipsilateral rotation, scapula elevation, downward rotationDorsal Scapular N (and C3,C4)
Rhomboideus MajorSpinous Process of T2-T5Medial border of scapulaeRetracts & elevates scapulae
Rhomboideus MinorSpinous Processes of C7-T1Medial Border of scapulaRetracts and Elevates Scapulae
Serratus AnteriorLateral aspect of upper 9 ribsanterior surface of vertebral border of scapulaeprotracts shoulder
Pectoralis MajorAnterior aspect of ribs 3-5coracoid process of scapuladepresses/protracts shoulders
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