LYMPHATICS OF PROSTATE 



739 



The lymphatics of the bladder. — The collecting vessels from the lower part of 

 the ventral surface pass to a node of the external iliac group, situated near the 

 femoral ring and the obturator nerve; those from the upper part of the ventral and 

 dorsal surfaces pass to the middle node of the middle group of the external iliac 

 chain, and from the rest of the dorsal surface they pass either to the hj-pogastric 



i 



Fig. 



580. — The Lymphatic Circulation of the Ileo-c.ecal Region Posterior View. 



(.\fter Kelly.) 



nodes or beyond these to the nodes at the bifurcation of the aorta (fig. 584). 

 In this latter group end also the vessels from the neck of the bladder. Along some 

 of the lymphatics of the bladder are intercalated lymph-nodes, which have been 

 termed anterior and lateral vesical nodes. 



The lymphatics of the prostate. — The lymphatics of the prostate have been 

 studied in the dog bj- Walker and in man by Bruhns. The collecting vessels, six 

 to eight on each side, pass along the prostatic artery to the nodes along the ex- 

 ternal border of the hypogastric artery. These nodes are connected with those 

 along the external and common iliac arteries, and it is possible, from an injection 

 of the prostate, to fill the entire chain of nodes as far as the renal artery. A 

 trunk from the posterior surface runs up over the bladder and curves outward to 



