i28o 



HUMAN ANATOMY. 



from the roots themselves. They turn dorsally almost immediately and divide into 

 an internal (r. medialis) and an external branch (r. lateralis), which supply the 



.' Fig. 1083. 



Great occipital nerve 



Cutaneous brs. of III. 

 cervical, dorsal div. 



'/ 



H, 



n 



\y 



Occipitalis major nerve 



Cutaneous brs. of IV. and V. j 

 cervical, dorsal division 



VII. cervical spinous process 



Cutaneous brs. of dorsal 

 divisions of : — 

 I. thoracic 



II. thoracic 

 III. thoracic 



IV. thoracic 



V. thoracic 



VI. thoracic-* — '■^ ' ^'w'^'a ^ 



r £^^ — ',>^ I 



VII. thoracic —i 



VIII. thoracic 



IX. thoracic 



X. thoracic 



Spinous process 



of XII. thoracic 



vertebra 



Cutaneous brs. of dorsal 

 divisions of : — 



XI. thoracic 



XII. thoracic 



I., II. and III. lumbar f 



nerves, ext. brs. of X 



dorsal divisions I 



Cutaneous brs. of donsal 



divisions of sacral 



nerves 



III., IV., v., VI., VII., 

 VIII., IX., X. and XI. 

 thoracic nerves, lateral 

 cutaneous branches 



XII. thoracic, lateral cu- 

 taneous br. 



Iliac br. ilio-hypogastric 

 nerve 



XII. thoracic, lateral cu- 

 taneous br. 



Superficial dissection, showing cutaneous branches of posterior divisions and lateral cutaneous branches of 



anterior divisions of spinal nerves. 



dorsal muscles and integument. At the two extremities of the spinal series the 

 division into internal and external branches does not prevail, the first cervical. 



