MOTOR FUNCTIONS OF THE BULBO-SACRAL OUTFLOW 55 



hypogastric nerut 

 m.o 



cervix uteri 



pelvic nerve 

 (aervus erigens) 

 from 7/i 

 9. m 



ttrefaral orifice - 



FIG. 9 (from Langley and Anderson, the " Journal of Physiology"). 



Left pelvic plexus of cat. The three sacral nerves and the first coccygeal nerve 

 were cut peripherally of the spinal ganglia, and eleven days allowed for de- 

 generation. 



The numbers placed opposite each strand show the number of normal and of de- 

 generated fibres present in it the number of normal fibres being placed first. 

 Thus 35'o indicates that the strand contained thirty-five normal fibres and not 

 one degenerated ; m signifies many fibres (more than twenty-five) ; s signifies 

 some (ten to twenty-five) ; andf, a few fibres (nine or less). Thus Q'm signifies 

 that nine sound and more than twenty-five degenerated fibres were present in 

 the strand. 



