712 



ANGIOLOGY 





pierce the crura of the diaphragm and end in the glands of the posterior medias- 

 tinum. 



3. The lymphatic vessels of the urinary organs. 



The Lymphatic Vessels of the Kidney form three plexuses: one in the substance 

 of the kidney, a second beneath its fibrous capsule, and a third in the perinephric 

 fat; the second and third communicate freely with each other. The vessels from 

 the plexus in the kidney substance converge to form four or five trunks which 

 issue at the hilum. Here they are joined by vessels from the plexus under the 

 capsule, and, following the course of the renal vein, end in the lateral aortic glands. 

 The perinephric plexus is drained directly into the upper lateral aortic glands. 



The Lymphatic Vessels of the Ureter run in different directions. Those from 

 its upper portion end partly in the efferent vessels of the kidney and partly in the 

 lateral aortic glands; those from the portion immediately above the brim of the 

 lesser pelvis are drained into the common iliac glands; while the vessels from the 

 intrapelvic portion of the tube either join the efferents from the bladder, or end 

 in the hypogastric glands. 



Common iliac 

 artery 



Gland in front of 

 sacral promontory 



External iliac 

 glands 



Lymphatics 

 from bladder 



Hypogastric 

 glands 



Ureter 



Lymphatics from 

 bladder 



Fio. 618. Lymphatics of the bladder. (Cune'o and Marcille.) 



The Lymphatic Vessels of the Bladder (Fig. 618) originate in two plexuses, an 

 intra- and an extramuscular, it being generally admitted that the mucous mem- 

 brane is devoid of lymphatics. 1 The efferent vessels are arranged in two groups, 

 one from the anterior and another from the posterior surface of the bladder. The 

 vessels from the anterior surface pass to the external iliac glands, but in their course 

 minute glands are situated. These minute glands are arranged in two groups, 

 an anterior vesical, in front of the bladder, and a lateral vesical, in relation to the 

 lateral umbilical ligament. The vessels from the posterior surface pass to the hypo- 

 gastric, external, and common iliac glands; those draining the upper part of this 

 surface traverse the lateral vesical glands. 



1 Some authorities maintain that a plexus of lymphatic vessels does exist in the mucous membrane of the bladder 

 (consult M6decine op6ratoire des Voies urinaires, par J. Albarran, Paris, 1909). 



