THE HEPATIC ARTERY. 



427 



transverse iissure ; 6, gastro-duodenal artery ; 6', its continuation as the right gastro- 

 epiploic ; 7, on the left eras of the diaphragm, the splenic artery ; 8, its left gastro- 

 epiploic branch proceeding round the great cui-vature of the stomach to communicate with 

 the right gastro-epiploic artery ; both of these vessels are seen giving long epiploic as 

 well as gastric branches. 



The superior pancrciiticp-dHodcnal branch, descends along the inner margin of 

 the duodenum, between it and the pancreas, and, after furnishing several branches 

 to both these organs, anastomoses with the inferior pancreatico-duodcnal from the 

 superior mesenteric artery. 



(c) The njstic artery, given off by the right hepatic when crossing 

 behind the cystic duct, turns upwards and forwards upon the neck of 

 the gall-bladder, and divides into two smaller branches, of which one 

 ramifies between the coats on the depending surface, the other between 

 the bladder and the liver. 



Varieties. — The hepatic arteiy sometimes arises from the superior mesenteric 

 artery, or from the aorta itself. Accessory hepatic arteries are often met with. 



Fig. 277. 



Fig. 277. — The Aeteeies of the SxciiACH, Dcodexum, Pancreas, and Spleen 

 (from Tiedemann). :j 



The stomach and liver are turned upwards so as to show their lower surface. The 

 jejunum is divided at its commencement, a, lower surface of the right lobe of the liver ; 

 b, left lobe ; c, cardiac orifice of tlie stomach ; d, pylorus ; e, first part, /, second or 

 descending part, and ff, third or lower part of the duodenum ; h, commencement of the 

 jejunum emerging from behind the superior mesenteric arteiy ; i, the head, and k, tne 

 body of the pancreas ; 1, the spleen ; 1, 1, right and left inferior ijhrenic arteries passing 

 from the aorta upon the crura of the diaphragm ; 2, placed on the aorta close to the 

 cceliac axis ; 3, 3', the coronary artery ; 4, common hepatic ; 4', its right branch ; 4 , 

 cystic Ijranch ; 5, gastro-duodenal giving the inferior pyloric ; 5, on the great curvature 

 of the stomach, the right gastro-epiploic ; 6, superior pancreatico-diiodenal ; 7, common 

 splenic ; 7', proper splenic ; 7", one of the vasa brevia to the stomach ; 8, 8, left gastro- 

 epiploic artery uniting with the right on the great curvature of the stomach ; 9, trunk of 

 the superior mesenteric artery, giving off the inferior pancreatico-duodenal ; 10, inferior 

 mesenteric. 



