SPLENIC VEIN. 



385 



the venous blood from the capillaries of the superior mesenteric artery; 

 they constitute by their junction a large trunk, which ascends by the 

 side of the corresponding artery, crosses the transverse duodenum, 

 and unites behind the pancreas with the splenic in the formation 

 of the portal vein. 



The Splenic vein commences in the structure of the spleen, and quits 



i Fig. 136.* 



* The portal vein. 1 . The inferior mesenteric vein ; it is traced by means of 

 dotted lines behind the pancreas (2) to terminate in the splenic vein (3). 4. The 

 spleen. 5. Gastric veins, opening into the splenic vein. 6. The superior 

 mesenteric vein. 7. The descending portion of the duodenum. 8- Its trans- 

 verse portion, which is crossed by the superior mesenteric vein and by a part of 

 the trunk of the superior mesenteric artery. 9. The portal vein. 10. The 

 hepatic artery. 11 The ductus communis choledochus. 12. The division of the 

 duct and vessels at the transverse fissure of the liver. 13. The cystic duct lead- 

 ing to the gall bladder. 



2 c 



