NEUROLOGY 



costales extern! and Serratus anterior, and divide into anterior and posterior 

 branches. The anterior branches run forward to the side and the forepart of the 

 chest, supplying the skin and the mamma; those of the fifth and sixth nerves 



.' 



INTEROOSTO- y'l.,1 

 BHACHIAL |S 



ANTERIOR CUTANEOUS 

 NERVES OF THORAX 



ANT. CUTANEOUS 

 OF X, XI, AND 

 XII THORACIC 



FIG. 820. Cutaneous distribution of thoracic nerves. (Testut.) 



supply the upper digitations of the Obliquus externus abdominis. The posterior 



branches run backward, and supply the skin over the scapula and Latissimus dorsi. 



The lateral cutaneous branch of the second intercostal nerve does not divide, 



like the others, into an anterior and a posterior branch; it is named the intercosto- 



