1204 



THE DIGESTIVE SYSTEM. 



expressed as follows : The head (Fig. 946) lies in the concavity of the duodenum, 

 with the vena cava inferior and abdominal aorta behind it ; the body crosses the 



Aorta 



Fossa for caudate lobe 

 Right phrenic vessels 



Vena cava 

 Hepatic veil 

 Hepatic artery 

 Portal vein 



Pylorus 



Bile-duct 



(Esophagus 



Left gastric artery 

 Diaphragm 



/ i Left supra-renal gland 

 Splenic artery 

 Kidney 



Right supra-renal gland 



Upper surface of pancreas 

 Gastric surface of spleen 



Ureter 



Inferior mesen- 

 teric artery 



Internal sper- 

 matic vein 



Ureter " 



Right common iliac 

 vein 



Right common iliac 

 artery 



Left common iliac 

 vein 



Under surface 

 N of pancreas 

 "Attachment of 

 transverse 

 mesocolon 



S Duodeno- 

 jejunal flexure 

 Gastro- duodenal 

 artery and neck 

 of pancreas 



xSuperior mesen- 

 teric artery 



Duodenum 



reter 



Colon 



FIG. 946. 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 inferior vena cava 

 was left behind. The stomach bed is well shown. (From a body hardened by chromic acid injections.) 



left kidney and supra-renal gland ; and the tail touches the inferior part of the 

 spleen. The greater part of the organ lies behind the stomach, which must be 

 detached from the gastro-colic ligament, and turned upwards, in order to expose it. 

 In describing the detailed relations, each part of the organ will require to 

 be considered separately. 



Caput Pancreatis. The head of the pancreas is the large flattened and somewhat 

 disc-shaped portion of the gland which lies in the concavity of the duodenum, extending 

 along its second and third portions almost as far as the duodenal-jejunal flexure. Above, 



