264 CIRCULATORY SYSTEM. 



a vesical for the bladder, a sacral for the sacrum, a pudendal for 

 the parts of generation in the male, a vaginal for the vagina, 

 and a uterine for the uterus of the female. 



The Plexus Hemorrhoidalis, besides being connected with 

 the hypogastric, also anastomoses with the branches of the vena 

 portarum. 



The Plexus Vesicalis is different in the two sexes. In man it 

 commences at the extremity of the penis by several branches, 

 which unite into two trunks of considerable size, the Venae Dor- 

 sales Penis.* The latter go along the upper face of the penis, 

 near or at its middle, to the symphysis of the pubes, continually 

 receiving in this course small trunks from the integuments of the 

 penis and from the scrotum. They then get into the pelvis, be- 

 tween the root of the penis and the symphysis pubis, and conti- 

 nue horizontally backwards on the side of the prostate gland, of 

 the vesiculae seminales, and of the lower fundus of the bladder. 

 They receive many branches from these parts, which, with the 

 frequency of the anastomoses about here, constitute the vesical 

 plexus. The latter, finally, discharges into the lower part of the 

 hypogastric vein by two or more branches. 



In the female the vesical plexus begins on the dorsum of the 

 clitoris, by several branches coming from it and from the 

 vulva; they get into the pelvis under the symphysis pubis, 

 and on the sides of the urethra and of the vagina, forming 

 upon the lower part of the bladder, and on the side of the va- 

 gina, with the assistance of branches from these viscera, a 

 remarkable plexus, which also empties into the internal iliac 

 vein. 



The Plexus Sacralis consists in an order of veins, anasto- 

 mosing freely with each other, and corresponding with the 

 middle and the lateral sacral veins. They communicate with 

 the inferior end of the vertebral sinuses through. the anterior 

 sacral foramina; they also communicate with the hemorrhoi- 

 dal and with the vesical veins. They terminate in the venous 

 trunks, nearest the origin of the arteries from which they are 

 derived. 



The Plexus Pudendalis is derived from the branches of the 



* They are frequently found to unite into a single trunk, called, in such, case, 

 the Vena Magna Ipsius Penis. 



