1. Deltoid Action: Abducts shoulder (humerus); posterior deltoid- extension of the shoulder; anterior deltoid flexes shoulder

2. Biceps Brachii Action: flexes elbow (forearm); supination of forearm (radius/ulna) and shoulder (glenohumereal joint)

3. Brachioradialis Action: flexes elbow

4. Upper Appendicular Muscles Infraspinatus Supraspinatus Flexor Capri Ulnaris Carley Bedell and Britnia St. Pierre

5. Infraspinatus Action: Lateral Rotation of the shoulder (humerus); horizontal adduction of humerus.

6. Supraspinatus Action: Adduction of shoulder (humerus); stabilizes shoulder joint

7. Flexor Capri Ulnaris Action: Flexes wrist; acts with Extensor Carpi Ulnaris to adduct wrist

8. Subscapularis: medial (internal) rotation of humerus; stabilizes shoulder lateral (external) rotation of humerus

9. Brachialis: flexes elbow

10. Flexor carpi radialis: flexes and abducts wrist

11. Teres Minor: Action: provides Lateral, external rotation of humerus.

12. Triceps Brachii: Action: extends elbow and shoulder

13. Extensor carpi ulnaris: Action: extends and adducts wrist, also acts with flexor carpi ulnaris to adduct wrist.

14. Extensor carpi radialis (longus and brevis) action: extends and abducts wrist, and acts with flexor carpi radialis to abduct wrist.