Position the Pectoral Girdle Muscles (origin, insertion, action)

Origin of Trapezious

Occipital bone, ligamentum nuchae, and spinous process of thoracic vertebra

Origin of Levator Scapulae

Transverse processes of first four cervical vertebrae

Insertion of Levator Scapulae

Vertebral border of scapula near superior border

Insertion of Rhomboideous Major

Vertebral border of scapula, from spine to inferior angle

Origin of Serratus Anterior

Anterior and superior margins of ribs 1-8 (or 9)

Origin of Pectoralis Minor

Anterior surface of the sternal ends of ribs 3-5

Insertion of Serratus Anterior

Anterior surface of vertebral border of scapula

Insertion of Trapezious

Clavicle, acromion process and scapular spine of scapula

Action of Levator Scapulae

Elevates scapula

Action of Trapezious

1) Elevate, retract, depress, or rotate scapula 2) elevate clavicle 3) extend neck

Action of Rhomboideous Major

Adducts scapula and preforms downward rotation

Action of Pectoralis Minor

Depresses and protracts shoulder, rotates scapula downward, elevates ribs *if scapula is stationary

Action of Serratus Anterior

Protracts shoulder and rotates scapula in upward rotation

Origin of Rhomboideous Major

Spinous processes of superior thoracic vertebrae

Insertion of Pectoralis Minor

Coracoid process of scapula