DISTRIBUTION OF THE CG5LIAC ARTERY. 285 



trunk which soon divides. In some instances they are derived 

 from the coeliac. In a few cases the aorta furnishes one, and 

 the coelic the other. Each of the phrenic arteries commonly 

 crosses the crus of the diaphragm on its respective side, and 

 proceeding laterally, in a circular direction, often ramifies so as 

 to form an internal and external branch. Each of them gene- 

 rally sends branches to the cardia or oesophagus, to the glan- 

 dulae renales, and other contiguous parts. 



Distribution of the Cceliac Artery (See Plate VIII. facing 



page 286.) 



A. The Liver raised so as to show its concave surface. 



B. The Gall Bladder. 



c. The Stomach laid down to the left side. 



D. The Omentum. 



TL. The Colon. 



F. The Small Intestines. 



1. The Aorta. 



2. The Root of the Cozliac Artery. 



3. The Superior Coronary Artery of the Stomach. 



4. The Splenic Artery. 



5. The Gastro-Epiploic Artery. 



6. The same Artery running upon the Great Arch of the Stomach. 



7. The Pancreatica Duodenalis, a branch of the last. 



8 . The Hepatic Artery ; it is seen to divide into the right and left hepatic 

 arteries ; the right hepatic artery is seen to give off the Cystic Artery ; a 

 small branch is seen passing from the trunk of the hepatic artery to the 

 Pylorus, viz. the Lower Pyloric Artery. 



The Cceliac Artery ( Cceliac axis) 



Is the first great branch given off by the aorta in the abdo- 

 men, and is distributed almost entirely to the stomach, the liver 

 and the spleen. It projects from the anterior part of the aorta 

 so as to form a right angle with it, and is of course nearly hori- 

 zontal, when the body is erect. 



The main trunk of this great artery is so remarkably short, 

 that it has been compared to the stump of a tree ; for, at the 

 distance of half an inch from its origin, it generally divides into 

 three branches, which pass to the stomach, the liver, and the 



