I3i6 



HUMAN ANATOMY. 



Pectoralis minor muscle 



Pectoralis major muscle 

 Lesser internal 

 cutaneous 

 nerve 



\ 



Supraacromial 

 branches ot cer- 

 vical plexL.s 



Fig. I 105. 



L 



intercosto 



humeral 



ner\-e 



Posterior 



thoracic 



nerve 



Serratus 



niagnus 



muscle 



Lateral cutaneous 



branches of III, 



IV., V. and VI. 



thoracic 



nerves 



Vril., VIII., IX. and 



X. thoracic 



nerves 



Descending branch of 



superficialis colli 



Suprasternal and supra 

 clavicular branches of 

 cervical plexus 



Lateral cutaneous branch of, 



XI. thoracic nerve 



XI. thoradc nerve- 



XII. thoracic nerve 



Lateral cutaneous branch of 



XII. thoracic nerve 



External oblique muscle 



cut and everted 



Internal oblique muscle, cut 



llio-hypogastric nerv 



Transversalis muscle 



Lateral cutaneous branch of 

 XII. thoracic nerve 



gastric nerve ^i,i^^ branch 

 Internal oblique muscle 

 Ilio-inguinal nerve — 



Poupart's ligament 



Anterior 

 cutaneous brs, 

 ^of II., III., IV., 

 - V. and VI. tho- 

 racic nerves 



Anterior brs. 

 of IX. thoracic 

 nerve, the 

 'lowest one be. 

 longing to 

 the X. 



-Umbilicus 



Rectus abdom- 

 . inis, cut 

 Anterior 

 branch of X. 

 thoracic nerve 



Anterior 

 .branch of 

 XI. thoracic 



Anterior 

 — branch of XII. 

 thoracic nerve 



Hypogastric 

 portion of ilio- 

 hypogastric 



— - Aponeurosis 

 of external 

 obliqtie mus- 

 cle, cut edge 



\. \ 



Ilio-inguinal nerve 

 Dissection showing thoracic, ilio-hypogastric and ilio-inguinal nerves. 



equivalent of a lateral cutaneous branch. In addition to the lateral cutaneous, the 

 anterior cutaneous branch may also be wanting, the area typically supplied by 

 the absent branch being served by the descending branches of the cervical plexus. 



