128 ANATOMY AND PHYSIOLOGY 



SPINAL NERVE SUPPLY TO PRINCIPAL MUSCLE GROUPS 



REGION. 



MUSCLES. 



NERVE. 



SIDE OF NECK. 



THORAX AND SHOULDER 



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. . 



ARM, ANTERIOR 



Pectoralis major and minor 

 Biceps. 



Coracd-brachialis 



Brachialis. . 



ARM, POSTERIOR Triceps 



FOREARM, POSTERIOR. Supinators and extensors 

 of wrist 



Extensors of fingers 



FOREARM, ANTERIOR . . Pronators and superficial 

 flexors ; 



Flexor carpi ulnaris and 

 deep flexors 



(The deep flexor of fingers 

 has also a branch from 

 median.) 



HAND Thenar eminence (muscles 



of thumb) 



Hypothenar eminence 

 (muscles of little finger) . . 



Interossei 



ABDOMEN AND PELVIS. Rectus and pyramidalis. 



Quadratus lumborum. 



External and internal ob- 

 lique. 



Transversus. 



Psoas and iliacus 



Levator ani. 



Perinea! 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. thoracic. 



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. 



