742 



THE LYMPHATIC SYSTEM 



membrane of the glans follow the dorsal vein. Those from the penile and mem- 

 branous portions of the urethra start from the inferior surface and curve around 

 the corpora cavernosa, as seen in fig. 586, to join the others along the dorsal vein. 

 These vessels run with the vein to the symphysis, where they form a plexus in 

 which there may be some small intercalated nodes. From this plexus vessels 

 pass in two directions: — (1) Three or four vessels, the crural trunks, pass to the 

 deep inguinal and external iliac nodes, and (2) one vessel enters the inguinal 

 canal and ends in one of the external iliac nodes. 



The vessels from the bulbar and membranous portions either follow the internal 

 pudic artery, or pass to the symphysis and end in the external iliac nodes, or pass 

 onto the surface of the bladder and thence to the external iliac chain. The 



Fig. 585. — The Lymphatics of the Prostate. (After Cuneo and Marcille.) 



External iliac / 

 nodes \ 



External iliac pro- 

 static ducts 



Retroprostatic 



lymphatics 



Collecting vessels 



from prostate to 



node of 



promontory 



- Node of the pro- 

 montory 



Lateral sacral 

 node 



External iliac 

 node 



Collecting vessels 

 from prostate 

 to node of pro- 

 montory 



( / 1 I / I Middle haemor- 

 / ' / I rhoidal node 

 f •^ j / and trunks 



lymphatics of the prostatic portion run with the prostatic ducts. The lymphatics 

 of the urethra anastomose with those of the bladder and those of the glans. 



2. In the female the lymphatic vessels of the urethra end inSthe external iliac 

 and hypogastric nodes. 



Lymphatics of the Reproductive Organs 

 In the Male (figs. 585, 586, 587) 



The lymphatics of the external genitalia will be first described and then those 

 of the internal organs (fig. 589). 



The lymphatics of the scrotum form a rich plexus which has been pictured by 

 Teichmann (fig. .547). 'i'lie collecting vessels, ten to fifteen on either side, arise 

 near the raphe and pass to the root of the penis, where some curve lateralward to 

 the superior medial superficial inguinal nodes; while others, coming from the 

 lateral surface of the scrotum, pass to the corresponding inferior nodes. 



