298 ABDOMINAL AORTA. 



On its left side is the left semilunar ganglion and sympathetic 

 nerve ; and on the right the vena cava, right semilunar ganglion, and 

 the commencement of the vena azygos. 



Plan of the Relations of the Abdominal Aorta. 

 In Front. 



Left renal vein, 



Pancreas, 



Transverse duodenum, 



Mesentery, 



Aortic plexus. 



Right Side. 



Vena cava, 

 Right semilunar gan- 

 glion, 

 Vena azygos. 



Left Side. 



Left semilunar gan- 

 glion, 

 Sympathetic nerve. 



Behind. 



Thoracic duct, 

 Receptaculum chyli, 

 Left lumbar veins. 



Branches. The branches of the aorta, arranged in a tabular form, 

 are, 



Coronary. 



Arch of the aorta 



TJioracic aorta . 



( Left subclavian. 

 TPericardiac, 

 J Bronchial, 

 j GEsophageal, 

 (, Intercostal. 

 rPhrenic, 



Abdominal aorta . 



C Gastric, 



Creliac axis, < Hepatic, 

 I Splenic. 



Supra-renal, 



Renal, 



Superior mesenteric, 



Spermatic, 



Inferior mesenteric, 

 I Lumbar, 

 I Sacra media, 

 L Common iliacs. 



The CORONARY ARTERIES arise from the aortic sinuses at the com- 

 mencement of the ascending aorta, immediately above the free margin 

 of the semilunar valves. The left, or anterior coronary, passes for- 

 wards, between the pulmonary artery and left appendix auriculae, and 



