464 



Veins of the Trunlv. 



i 



V. ovarica 



Ovarium 



Ligamentiim teres uteri 

 Vesica urinaria 



Plexus utero- 

 vagiualis 



Kectum 

 / V. liaenior- 



/ rhoidalis 

 superior 



y. dorsalis 

 clitoridis 



Plexus pudeiidalis 

 Beginning of tlie v. pudenda interna 



Ureter 



Plexus 

 -. haemorrlioidalis 



externus 



Plexus vesicalis 



Plexus uterovaginalis j 



Intestinum rectum 



M. levator ani 



\ Vv. uterinae 

 A. uterina 



Vagina 



\ Vv. vesieales 



502. Veins of the female pelvic organs, 



viewed from the left. 

 (The superficial layers of the venous plexuses [see Fig. 503] have heen removed; the peritonaeum 



has been for the most part removed.) 



2. Plexus haemorrlioidalis interiins (see Figs. 501 and 576) in thi' tela snhmucosa 

 of the rectum, with ampulla-like dilatations in the region of the annulus haemorrhoidalis, empties 

 partly into a dehcate superficial network at the anus, partly by means of numerous perforating 

 branches into the plexus haemorrlioidalis externus (see also Fig. 500) situated upon the 

 external surface of the tunica muscularis. From the latter arise the v. haemorrhoidalis superior 

 (to the V. mesenterica inferior of the v. portae), the vv. haemorrhoidales mediae, paired, which 

 receive branches from the bladder, prostate and seminal vesicles (uterus and vagina) (to the 

 V. hypogastrica) and the vv. haemorrhoidales inferiores, paired, Irom the neighborhood of the 

 anus (to the v. imdeuda interna) ; in addition branches go to the v. sacralis media. 



3. Plexus vesicalis (see also Figs. 500, 503 and 677) surrounds the lower part of 

 the bladder and the basis prostatae lateralward and behind, is comiected with the following 

 plexus and is emptied nu cacli side liy means of several vv. vesieales. 



4. Plexus pudeiidalis (see also Figs. 500 and 503) lies beliind and over the lig. ar- 

 cuatum pubis, in Iront of the prostate and bladder (in the male, the bladder and urethra in 

 the iemale), receives the main trunk of the unpaired v. dorsalis penis (ciitoridisj (see also 

 Fig. 656), which runs between the lig. arcuatum pubis and the lig. transversum pelvis, is 

 connected with the v. pudenda interna and with the plexus vesicalis and empties partly into 

 the vv. vesieales, partly directly into the v. hypogastrica. 



5. Plexus uterovag'inalis (in the female) extends over the walls of the vagina and as 

 an especially close plexus ahing the nuirgo lateralis of the uterus, where it partly fills up the 

 parametrium and surrounds tiie un>ter. It is connected in front with the plexus pudendalis and 

 haemorrhoidalis externus and empties on each side chiefly through the large vv. titerinae, which 

 s!irruund the a. uterina and form ]mnu\ anastomoses with the plexus pampiniformis of the v. ovarica. 



