128 ANATOMY AND PHYSIOLOGY 



SPINAL NERVE SUPPLY TO PRINCIPAL MUSCLE GROUPS 



REGION. 



SIDE OF NECK. 



THORAX AND SHOULDER 



MUSCLES. 



NERVE. 



ARM, ANTERIOR 



ARM, POSTERIOR 



FOREARM, POSTERIOR. 



FOREARM, ANTERIOR. 



HAND. 



ABDOMEN AND PELVIS. 



Three scaleni muscles. 

 Elevator of angle of scapula 



Intercostal. . . 



Diaphragm 



Sacro-spinalis (erector 



spinae) 



Latissimus dorsi 



Supra- and infraspinatus. . 

 Subscapularis. 



Teres major 



Teres minor 



Deltoid. . 



Pectoralis major and minor 

 Biceps. 



Coraco-brachialis 



Brachialis. . 



Triceps 



Supinators and extensors 

 of wrist 



Extensors of fingers 



Pronators and superficial 

 flexors 



Flexor carpi ulnaris and 

 deep flexors 



(The deep flexor of fingers 

 has also a branch from 

 median.) 



Thenar eminence (muscles 

 of thumb) 



Hypothenar eminence 

 (muscles of little finger) . . 



Interossei 



Rectus and pyramidalis. 



Quadratus lumborum. 



External and internal ob- 

 lique. 



Transversus. 



Psoas and iliacus 



Levator ani. 



Perineal muscles 



Piriformis 



Gluteus maximus 



Gluteus medius and mini- 

 mus. 



Tensor fasciae latae 



Obturators, external and 

 internal. . 



Cervical branches of bra- 

 chial plexus. 

 Intercostal. 

 Intercostal and phrenic. 



Spinal. 



Long subscapular. 



Suprascapular . 



Subscapular. 

 Axillary. 



Axillary and ant. tho- 

 racic. 

 Ant. oracic. 



Musculo-cutaneous. 

 Musculo-cutaneous and 

 radial. 



Radial (musculo-spiral). 

 Deep branch of radial. 



Median. 

 Ulnar. 



Ulnar and median. 



Ulnar. 

 Ulnar. 



Thoracic and lumbar. 



Pudic. 



Sacral plexus. 

 Inferior gluteal. 



Superior gluteal. 

 Obturator. 



