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10 Cards in this Set
- Front
- Back
Origin: occipital bone, ligamentum nuchae & spinous processes of thoracic vertebrae
Insertion: clavicle and scapula (acromion and scapular spine) Action: elevate, retract, depress, or rotate scapula upward and/or elevate clavicle; extend neck |
Trapezius
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Origin: spinous process of vertebrae C7-T1
Insertion: vertebral border of scapula Action: adducts & performs downward rotation of scapula |
Rhomboideus Minor
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Origin: spinous process of superior thoracic vertebrae
Insertion: vertebral border of scapula from spine to inferior angle Action: adducts and downward rotation of scapula |
Rhomboideus Major
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Origin: transverse precesses of C1-C4 vertebrae
Insertion: vertebral border of scapula near superior angle Action: elevates scapula |
Levator Scapulae
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Origin: anterior and superior margins of ribs 1-8 or 1-9
Insertion: anterior surface of vertebral border of scapula Action: protracts shoulder: rotates scapula so glenoid cavity moves upward rotation |
Serratus Anterior
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Origin: anterior surfaces and superior margins of ribs 3-5
Insertion: coracoid process of scapula Action: depresses & protracts shoulder, rotates scapula (glenoid cavity rotates downward), elevates ribs |
Pectoralis Minor
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Origin: supraspinous fossa of scapula
Insertion: greater tuberacle of humerus Action: abduction at the shoulder |
Supraspinatus
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Origin: infraspinous fossa of scapula
Insertion: greater tubercle of humerus Action: lateral rotation at shoulder |
Infraspinatus
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Origin: clavicle and scapula (acromion and adjacent scapular spine)
Insertion: deltoid tuberosity of humerus Action: abducts shoulder, flexion and extension, medial and lateral rotation of humerus |
Deltoid
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Origin: lateral border of scapula
Insertion: greater tubercle of humerus Action: lateral rotation at shoulder |
Teres Minor
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