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Origins Insertions And Actions Of Muscles

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fuliwuto's version from 2016-01-28 20:59

Origins Insertions And Actions of Muscles of the Shoulder

 

MuscleOriginInsertionAction
TrapeziusBack of the skull, Spinous process of C7 and T1-T12Lateral edge of the clavicle, Acromium and Spine of the scapulaElevates, depress, retract, adduct & rotate scapulae, elevate clavicle
Levator ScapulaeTransverse processes of C1-C4vertebral border of scapulaeElevates scapulae
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 MinorAnterior aspect of ribs 3-5coracoid process of scapulaOrigin fixed - Downward rotation of the scapula
Insertion fixed - elevates ribs during breathing
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