CCELIAC ARTERY AND BRANCHES. 



331 



CCELIAC AXIS AND PORTAL VEIN. 



A short branch of the aorta the coeliac axis furnishes arteries Arteries of 

 to the stomach and duodenum, the liver, pancreas, and spleen : it sub- 

 divides into thiee primary branches coronary, hepatic, and splenic. 



The veins corresponding to the arteries (except the hepatic) are Veins, 

 collected into one trunk the vena portse. 



Dissection. The vessels have been in part laid bare by the How to dis- 

 previuiis dissection, and in tracing them out fully the student S^ 006 

 should spare the nerve-plexuses around them. Supposing the liver an d 

 well raised, he may first follow to the left side the small coronary branches, 

 artery, and show its branches to the oesophagus and the stomach, coronary, 



Common bile-duct. 



Portal vein. Hepatic artery. 



Coronary artery. Splenic artery. 



Gastro-duodenal 

 artery. 



Superior pan- 

 creatico-duo- 

 denal artery. 



Gastro-epi- 



plo'ica dextra 



artery. 



Anterior border of pancreas. 

 Inferior mesenteric vein. 

 Colica media artery. 

 Superior mesenteric artery. 



Superior mesenteric vein. 

 Colica dextra artery. 



FIG. 123. THE PANCREAS AND THE BLOOD-VESSELS is RELATION WITH IT. 

 (From a specimen in the Charing Cross Hospital Museum.) 



Next, the hepatic artery, with the portal vein and the bile-duct, may hepatic, 

 be traced to the liver and the gall-bladder ; and a considerable 

 branch of the artery should be pursued beneath the pylorus to the 

 stomach, duodenum, and pancreas. Lastly, the splenic artery, which and splenic, 

 lies along the upper border of the pancreas, is to be cleaned ; and its 

 branches to the pancreas, stomach, and spleen should be defined. In 

 doing this one student should hold aside the stomach and spleen 

 whilst the other does the dissection. 



The veins will be dissected for the most part with the arteries ; Veins, 

 but the origin of the portal trunk is to be made out beneath the 

 pancreas, and in front of the vena cava. 



The CCELIAC Axis (fig. 124, p. 333) is the first visceral branch Coeliac axis 

 of the abdominal aorta, and arises close to the upper margin of the three M- 

 opening in the diaphragm. It is a short thick trunk, about half an lowin s : ~ 

 inch long, which projects above the upper border of the pancreas, 



