156 HANDBOOK OF ANATOMY 



neck of the pancreas in front of the left border of the inferior 

 vena cava. It passes upwards behind the pancreas, duodenum,, 

 and common bile-duct, and enters the transverse fissure of the 

 liver. 



The Middle and Inferior Haemorrhoidal veins which drain the 

 lower part of the rectum, enter the internal iliac vein, and thus 

 connect the vena cava and portal systems. 



