CffiLIAC, MESENTERIC, AND RENAL PLEXUSES. 539 



upon the coats of the stomach, unite with the branches of the 

 par vagum, which are also spread upon them. 



A similar net-work, denominated the Hepatic Plexus, extends 

 upon the Hepatic Artery, and from it to the Vena Portarum ; 

 and accompanies those vessels into the substance of the 

 liver. It also sends branches to the biliary duct and gall- 

 bladder ; to the stomach by the arteria gastrica dextra ; and to 

 the omentum. 



The Splenic Artery is invested by a similar but smaller ar- 

 rangement of nerves, denominated the Splenic Plexus. In its 

 course to the spleen, this plexus sends some nerves to the 

 pancreas ; and also to the stomach and omentum, with the 

 left gastric artery. 



The superior mesenteric artery is surrounded by a network, 

 which extends to it directly from the solar plexus, and is the 

 largest of all which proceed from that plexus. The Mesenteric 

 Plexus at first nearly surrounds the artery, and proceeds with 

 it between the lamina of the mesentery. In this course it 

 sends branches, with the arteria colica dextra, to the transverse 

 portion of the colon. Between the lamina of the mesentery, 

 it sends ramifications with all the branches of the artery, to 

 the small intestines generally ; to the coecum, and the riohx 

 portion of the colon, as well as to the mesenteric glands. 



From the lower part of the solar plexus a network proceeds, 

 on the front of the aorta, to the inferior mesenteric artery, and 

 surrounds it. Nerves from this plexus accompany the artery 

 to the left portion of the colon and the rectum. Some 

 of their ramifications combine with those of the hypogastric 

 plexus. 



The Emulgent Artery is attended by nerves, which are 

 arranged like a network on its anterior and posterior surfaces, 

 and are denominated the Renal Plexus. They are derived 

 from the solar plexus, and frequently contain small ganglions. 

 They proceed with the artery to the fissure of the kidney, and 

 are distributed with its different ramifications, in the substance 

 of the organ. 



