1. Supraspinatus Origin Supraspinous fossa of the scapula Insertion Greater tubercle of the humerus Action - Shoulder abduction (first 15-degrees)
2. Infraspinatus Origin Infraspinous fossa of the scapula Insertion Greater tubercle of the humerus Action - Lateral shoulder rotation
3. Teres Minor Origin Superior lateral border of the scapula Insertion Greater tubercle of the humerus (inferior facet) Action - Lateral shoulder rotation
4. Subscapularis Origin Subscapular fossa of the scapula Insertion Lesser tubercle of the humerus Action
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