190 



THE NERVOUS SYSTEM. 



[d) The Bamns dorsalis is a very small nerve ; according" to 

 Waldeyer it possesses only twenty nerve-fibres. It arises from 



Fig. 127. 



The suiatic plexus, from 

 n Communicating nerve from the ninth spinal 



nerve. 

 «' Nerve to muse. lev. ani. 

 6 Nerve to oviduct. 

 c Urostyle. 

 cc Communicating twig from tlie ninth spinal 



nerve. 

 ci M. coccygeoiliacus. 

 C.I M. coccygeosacral is. 

 d Nerve to bladder. 

 d' Twig to the m. iliacus. 



e Twig from sciatic i)lexus to coccygeal plexus. 

 i M. intertransversiirius. 

 i M. ilio-coccygeus. 

 ip M. ilio-psoas. 

 lev M. lev. ani. 



oi M. obliq. abdom. internus. 

 I' Transverse ])rocess of sacrum. 



