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Origins Insertions And Actions Of Muscles

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nicolek's version from 2016-10-12 20:15

Origins Insertions And Actions of Shoulder Muscles

 

MuscleOriginInsertionAction
TrapeziusOccipital bone, Spinous process of C7-T12Clavical, Acromium and Spine of the scapulaeElevates, 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 MajorAnterior aspect of ribs 3-5coracoid process of scapuladepresses/protracts shoulders
DeltoidsClavicle and ScapulaUpper humerusAbduction, flexion, and extension, horizontal flexion and extension, internal and external rotation of the shoulder joint
Teres MinorLateral Border of ScapulaUpper HumerusAbduction, external rotation and stabilisation of the shoulder joint
SupraspinatusSuperior surface above the spine of scapulaUpper humerusAbduction and stabilisation of the shoulder joint
InfraspinatusPosterior surface below the spine of scapulaUpper humerusAbduction, Horizontal extension, external rotation and stabilisation of the shoulder joint
SubscapularisAnterior surface of the ScapulaUpper humerusInternal rotation, adduction and stabilisation of the shoulder joint
Teres MajorInferior Angle of the ScapulaUpper HumerusExtension, adduction and internal rotation of the shoulder joint
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