438 



ANGIOLOGT. 



matic cord. On reachiog the abdomen they communicate freely^ 

 forming the spermatic plexus, finally terminating in the cava 

 near the renal, by one or two trunks. In the female these veins 

 become the utero-ovarian, which follow the exact course of the 

 uter;o-ovarian arteries. 



The Lumbar veins correspond to their satellite arteries, and 

 result from muscular, spinal, and abdominal parietal branches. 



Fi«. 166. 

 Viscera, and veins of the portal s,vsteni. 1, Spleen : 2, Stomach ; 3 3, Convolution of small lutes* 

 ine ; 4, CsBcnin ; 5, Great colon ; a 6, Floating colon and rectum ; 7, Pancreas ; 8; Liver ; a a. 

 Portal vein ; &, Anterior mesenteric vein ; V V, Veins of siaaU intestine : h", Ileo-caecal ; b'". Colic 

 vein ; c c, Posterior mesenteric vein ; d, Gastro-splenif ; <J', Posterior gastric vein ; d", Splenio 

 vein ; d"'. Its i?Mtric branches, 



They join the upper surface of the vena cava. The anterior ones 

 often terminate in the vena, azygos. 



COMMON ILIAC vEma 



(Tio, 165. a, 6.) 

 These are two large, short vessels, forme^i by the' union of the 

 external and internal iliacs, the former collecting the blood fi^ili 



