Pectoralis Major & Minor, Serratus Anterior

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Pectoralis Major Joint Actions

Adduction of the shoulder Horizontal Adduction of the Humerus Medial Rotation of the Humerus

Pectoralis Minor Origin

Anterior surface of ribs 3-5 near costal cartilage

Pectoralis Major Origins

Clavicular Head: Medial half of the clavical Sternal Head: Sternum, Cartilages of the upper 6 ribs

Pectoralis Minor Insertion

Coracoid Process of Scapula

Pectoralis Major Insertion

Lateral lip of bicipital groove of the humerus

Pectoralis Minor Joint Actions

Protraction Depression Downward Rotation of the Scapula (Adduction)

Serratus Anterior Joint Actions

Protraction of Scapula Upward Rotation of the Scapula (Abduction)

Serratus Anterior Insertion

Vertebral border of the scapula

Serratus Anterior Origin

Outer surface of upper 8 ribs


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