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HANDBOOK OF ANATOMY 



Muscular, to the intercostal muscles. 



First thoracic nerve divides into two parts. The upper larger 

 part passes over the neck of the first rib, enters the neck behind 

 the subclavian artery , and joins with the other nerves forming 



Hypogastric Branch. 

 of Jlio-hypogastric 



Intercosto-humeral 



- -Additional Intercostc 

 humeral 



Lateral Cutaneous 

 1 2th Thoracic 



Iliac Branch of Ilio- 

 hypogastric 



FIG. 62. CUTANEOUS NERVES OF TRUNK. 



the brachial plexus. The lower part enters the subcostal groove 

 and supplies the intercostal muscles, but as a rule has no 

 cutaneous branches. 



Second thoracic nerve has the same course as a typical thoracic 

 nerve, but the lateral cutaneous branch, called the intercosto- 



