274 DR. LEE ON THE NERVOUS GANGLIA OF THE UTERUS. 



Explanation of the Plates. 



PLATE XXVI. 



Exhibits a posterior and lateral view of the gravid uterus in the fourth month of 

 pregnancy, of the vagina, rectum and bladder, with their ganglia and nerves. 



A. The fundus and body of the uterus covered with peritoneum. 



B. The vagina. 



C. The bladder. 



D. The rectum. 



E. F. The ovaria. 



G. The great sympathetic nerve where it divides into the two hypogastric nerves 

 and plexuses. The arteries and veins of the great sympathetic are all injected in the 

 preparation from which the drawing has been made. A little above the bifurcation 

 of the great sympathetic nerve, there is a deposit of cineritious matter in its sub- 

 stance, and the nerve itself is enlarged as high as the kidneys. 



H. The right and left hypogastric nerves and plexuses. The artery of the right is 

 injected, and accompanies the nerve to the great ganglion at the cervix in which it 

 terminates. 



I. The left hypogastric or great utero-cervical ganglion, with an artery passing 

 into it near the centre. 



J. The third and other sacral nerves, sending numerous large branches into the 

 posterior border of the ganglion, and the whole of its outer surface. 



K. The hsemorrhoidal nerves accompanying the arteries to the rectum, and send- 

 ing numerous branches to anastomose with nerves sent off from the posterior edge 

 of the ganglion. 



L. Branches of nerves with ganglia sent off from the left hypogastric nerve, which 

 pass down on the inside of the ureter to the trunks of the uterine artery and veins, 

 and enter ganglia which surround these blood-vessels. 



M. The left ureter, with a nerve accompanying it, which passes into the vesical 

 ganglion, situated on the anterior part of the ureter. 



N. Rings of nerve, surrounding the uterine blood-vessels. 



O. The middle vesical ganglion, into which large nerves enter, which are sent off 

 from the anterior border of the left hypogastric ganglion, and pass on the outside of 

 the ureter. 



P. Broad, flat ganglia formed on the great plexus of nerves which covers the upper 

 part of the vagina. 



Q. The orifices of the divided veins of the vagina, which are completely encircled 

 with ganglionic plexuses of nerves. 



R. Filaments of vaginal nerves passing under the sphincter. 

 S. Large nerves covering the posterior wall of the vagina, and anastomosing with 

 the haemorrhoidal nerves. 



