224 



nerves likewise have a more anterior origin, and that the more distal 

 position of the main nerves of the limb is accompanied by a more 

 distal origin of the border nerves. 



2. The Posterior Border Nerves. 

 Under this general heading may be grouped the nerves (mainly 

 cutaneous) of the ano-pudic region and the postero-median aspect of 



CXU spinal N /^ tijl ' «b 



XXIV spinal N 



liobjpogastric N 



ncuinal N 



XXIX spinal N 



inf. pudeodal N 

 pudic N--- • 



Fig. 6. Plexus of type E. 



the thigh. While these nerves vary very greatly in origin and distri- 

 bution they may be grouped readily into two distinct sets, a dorso- 

 lateral or external and a ventro-median or internal set. The greater 

 part of these nerves pass from the pelvic cavity lateral to the lesser 



