124 



TOPOGRAPHICAL ANATOMY OF THE 



termination of the duct will be examined along with the interior of the 

 duodenum. 



What is here described as ductus choledochus is strictly speaking 

 equivalent to the ductus hepaticus and ductus choledochus of those 

 animals in which a gall-bladder is present. The ductus choledochus in 

 such animals is formed by the union of the hepatic duct and the cystic 

 duct (from the gall-bladder). 



A. coeliaca. 

 A. lienalis. 



Aorta. 



A. gastrica sinistra. 

 A. hepatica. 



Spleen. 



Vena cava caudalis. 

 V. portse. 



A. gastroduodenalis. 

 ^^ A. gastrica dextra. 



A. gastrica sinistra 

 (ramus caudalis). 



A. gastrica sinistra 

 (ramus oesophageus). 



CEsophagus. 



Stomach. 

 A. gastroepiploica sinistra 



Liver 



A. pancreaticoduodenalis. 

 Duodenum. 



A. gastroepiploica dextra. 

 Pylorus. 



A. gastrica sinistra (ramus cranialis). 

 Fig. 57.— Diagram of the branches of the cojiiac artery. 



Dissection. — There should be little difficulty in finding the coeliac 

 artery dorsal to the pancreas, but the process is made simpler by follow- 

 ing one of its branches, the splenic artery (running along the" hilus of 

 the spleen), towards the aorta. In cleaning the branches of the oteliac 

 artery it will be found that they are surrounded by a network of nerves. 

 These should be preserved and their ganglionic connections determined. 

 The two cesophageal nerve trunks, ventral and dorsal, should be secured 

 as they pass through the diaphragm in company with the o'sophagus. 

 Various groups of lymph glands must also be preserved. 



A. CCELIACA. — The liver, spleen, pancreas, stomach and part of the 

 duodenum are supplied with blood by the cceliac ^ artery, which leaves 



' KOikia (coilia) [Gr.], belly. 



