MOTOR FUNCTIONS OF THORACICO-LUMBAR OUTFLO W 41 



pocularis or uterus masculinus (the remnant of the Mullerian 

 duct) opens into the uro-genital sinus in the prostate gland. 



Further, in the original cloaca the bladder and rectum formed 



O 



V 



FIG. 8. THE CONNECTOR FIBRES AND EXCITOR NEURONS OF THE URO-GENITO- 

 DERMAL SYSTEM OF THE FEMALE, THAT is TO SAY THE SYSTEM SUPPLYING 

 THE SEGMENTAL DUCT MUSCLES. 



The connector fibres run in the lumbar splanchnic nerve, L.S., and all pass 

 through the inferior mesenteric ganglion, I.M.G. One set then runs to connect with 

 motor neurons lying on the ureter, Ur. Another set connects with motor neurons 

 lying on the uterus, U., and the fallopian tube, F.T. 



0. Ovary. 



V. Vagina. 



B. Bladder. 



K. Kidney. 



a single cavity. In the course of growth the uro-genital parts 

 have separated entirely from the rectum and the bladder part 

 of the cloaca and the rectal part open to the exterior by different 

 openings. All these tubes are surrounded by unstriped muscle 



