Sympathetic chain 



Pudic nerve fibers 

 (Motor, 3 bo vaso-constrictor^ 



Corpus cavernosum 



-5pinal 

 cord 



nerves 



Pelvic 

 ganglia 



Retractor penis muscle* 

 'Corpus spongiosum 



Urethra Pelvic(Erigens)nerve fibers 



(Inhibitory, also vdSO-dilator) 

 (Erection) 



Fig. 250. Schematic representation of the innervation of the retractor jienis muscle. 

 The vasomotor innervation for the region is also indicated. 



