The spinous process and ligamentous attachments of the lower six thoracic vertebrae and all five lumbar vertebrae

Lateral aspects of thoracolumbar fascia

Sacrum

Superior glenoid tubercle of the humerus

Coracoid process of the scapula

Inner lip of the proximal half of the iliac crest

Acromion of the scapula

Outer lip of the distal lip of the iliac crest

Outer surface of the lower three/four ribs

Inferior angle of the scapula

Medial aspects of thoracolumbar fascia

Deltoid tuberosity of the humerus

Greater tubercle of the humerus

Lesser tubercle of the humerus

Intertubercular groove of the humerus

Thoracodorsal nerve (C6, C7, C8)

Dorsal scapular nerve (C4, C5, C6)

Medial pectoral nerve (C6, C7)

Musculocutaneous nerve (C5, C6)

Shoulder abduction

Shoulder flexion

Shoulder adduction

Shoulder medial rotation

Shoulder lateral rotation

Shoulder extension