THE DUODENUM. 



1183 



Its relations are as follows : It forms the inferior boundary of the foramen epiploicum, and, 

 above that foramen, it is in relation to the caudate process of the liver, while the quadrate lobe 

 of the liver hangs downwards over it and to the right. The hepatic artery is in contact for a 

 short distance with the superior border. Below, it rests on the head and neck of the pancreas. 

 The portal vein, gastro-duodenal artery, and the bile-duct lie in contact with it on the left 



Aorta 



Fossa for caudate lobe 

 Right Inferior phrenic vesse 

 Inferior Vena cava 



Hepatic vein 

 Hepatic artery 

 Portal veii^ 

 Pylorus 



Bile-duct 

 Right supra-renal gland 



phagus 



ft gastric artery 

 iaphragra 



Left supra-renal gland 

 Splenic artery 

 Kidney 



Anterior surface of pancreas 

 Gastric surface of spleen 



Head of 

 pancreas 



Superior 



mesenteric 



vein 



Ureter 



Inferior mesen- 

 teric artery 



Internal sper- 

 matic vein 



Ureter 



Right common iliac,- 

 vein 



Right common iliac 

 artery 



Left common iliac 

 vein 



ferior surface 

 of pancreas 

 Attachment of 

 transverse 

 mesocolon 



uodeno- 

 jejunal flexure 

 Gastro-duodenal 

 artery and neck 

 of pancreas 



^Superior mesen- 

 teric artery 



Duodeimii 



Colon 



FIG. 932. THE VISCERA AND VESSELS ON THE POSTERIOR ABDOMINAL WALL. 



The stomach, liver, and most of the intestines have been removed. The peritoneum has been preserved on the 

 right kidney, and the fossa for the caudate lobe. When the liver was taken out, the vena cava was left 

 behind. The stomach bed is well shown. (From a body hardened by injection of chromic acid. ) 



side, and behind them the duodenum comes into contact with the right aspect of the inferior 

 vena cava. The superior pancreatico-duodenal and the right gastro-epiploic vessels pass forwards 

 below its inferior margin. 



Its peritoneal relations are similar to those of the pyloric end of the stomach for about an 

 inch. It is therefore at first invested by peritoneum on the right and left aspects, and the 

 peritoneum passes upwards from its superior border as the right portion of the lesser omentum, 

 forming the hepato -duodenal ligament, while from its inferior border the descending folds of the 



