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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
Origin: spinous process of vertebrae C7-T1

Insertion: vertebral border of scapula

Action: adducts & performs downward rotation of scapula
Rhomboideus Minor
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
Origin: transverse precesses of C1-C4 vertebrae

Insertion: vertebral border of scapula near superior angle

Action: elevates scapula
Levator Scapulae
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
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
Origin: supraspinous fossa of scapula

Insertion: greater tuberacle of humerus

Action: abduction at the shoulder
Supraspinatus
Origin: infraspinous fossa of scapula

Insertion: greater tubercle of humerus

Action: lateral rotation at shoulder
Infraspinatus
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
Origin: lateral border of scapula

Insertion: greater tubercle of humerus

Action: lateral rotation at shoulder
Teres Minor