Synergists - muscles working together Shoulder - glenohumeral joint

Flexion                                                          

Deltoid (anterior)                                                                                                                            

Pectoralis major (upper)    

Biceps brachii                       

Coracobrachialis                  

Extension                                                       

Deltoid (posterior)                          

Latissimus dorsi                              

Teres major                              

Infraspinatus                                   

Teres minor                                     

Pectoralis major (lower)                

Horizontal adduction                                        

Deltoid  anterior                                               

Pectoralis major (upper)                 

Horizontal abduction                                                                        

Deltoid  posterior                                                                             

Infraspinatus                                                                    

Teres minor                                                                                    

Abduction                                                            

Deltoid                                              

Supraspinatus                                 

Adduction                                                              

Latissimus dorsi                                  

Teres major                                         

Infraspinatus                                       

Teres minor                                         

Pectoralis major                                 

Triceps brachi (long)                              

Coracobrachialis       
                          

Lateral rotation (external)                                                                    

Deltoid (posterior)                                                                  

Infraspinatus                                                                           

Teres minor                                                                             

Medial rotation (internal)                                     

Deltoid (anterior)                                   

Latissimus dorsi                                                                         

Teres major                                                                                

Subscapularis                                          

Pectoralis major                                    

Scapula - scapulothoracic  joint

Elevation                                                                         

Trapezius (upper)                               

Rhomboid major                                 

Rhomboid minor                                 

Levator scapula                                   

Depression                                                                 

Trapezius (lower)                               

Serratus anterior                              

Pectoralis minor                               

Abduction (protraction)                                     

Serratus (anterior)                           

Pectoralis minor                              

Adduction (retraction)                                          

Trapezius (middle)                           

Rhomboid major                              

Rhomboid minor                              

Upward rotation                                                     

Trapezius (upper/lower)                

Downward rotation                                                

Rhomboid major                              

Rhomboid minor                              

Levator scapula                                

Elbow- humeroulnar and humeroradial joints

Flexion                                                                                              

Biceps brachii                                    

Brachialis                                            

Brachioradialis                                   

Flexor carpi radialis                           

Flexor carpi ulnaris                            

Palmaris longus                                   

Pronator teres                                    

Extensor carpi radialis longus          

Extensor carpi radialis brevis           

Extension                                                                                    

Triceps brachii                                    

Anconeus                                             

Forearm - proximal and distal radioulnar joints

Supination                                                                                                  

Biceps brachii                                     

Supinator                                            

Brachioradialis                                   

Pronation                                                                    

Pronator teres                                   

Pronator quadratus                          

Brachioradialis                                   

Wrist- Radiocarpal joint

Extension                                                                     

Extensor carpi radialis longus            

Extensor carpi radialis brevis              

Extensor carpi ulnaris                           

Extensor digitorum      
                         

Flexion                                                                            

Flexor carpi radialis                              

Flexor carpi ulnaris                              

Palmaris longus                                     

Flexor digitorum superficialis             

Flexor digitorum profundus               

Abduction (radial diviation)                                                                

Extensor carpi radialis longus              

Extensor carpi radialis brevis               

Flexor carpi radialis

Adduction (ulnar diviation)                                           

Extensor carpi ulnaris                           

Flexor carpi ulnaris         
                       

Hand and fingers - metacarpophalageal, proximal and distal interphalangeal joints

flexion of the second - fifth fingers                            

Flexor digitorum superficialis                

Flexor digitorum profundus                   

Flexor digiti minimi brevis 5^th                         

Lumbricals                                                 

Dorsal interossei 2^nd -4^th                                       

Palmar interossei 2^nd , 4^th , 5^th                        

Extension of the second through fifth fingers            

Extensor digitorum                                 

Extensor indicis 2^nd                                                   

Lumbricals                                                

Dorsal interossel  2^nd - 4^th                     

Palmar interossei  2^nd , 4^th, 5^th