486 NERVOUS SYSTEM. 



quickly disposed into three divisions, which follow the branches 

 of this artery. 



a. The Superior Coronary Plexus of the stomach, is the 

 smallest of the three. It attends the corresponding artery 

 along the lesser curvature of the stomach to the pylorus, sup- 

 plying the stomach continually with very fine filaments. In 

 its course, it anastomoses with the par vagum, arid sends fila- 

 ments to the hepatic plexus. 



. The Hepatic Plexus is the largest of the three. It sur- 

 rounds the hepatic artery and the vena portarum, and, in its 

 course, detaches branches which go with the right gastro-epi- 

 ploic artery to the great curvature of the stomach, and consti- 

 tute the inferior coronary plexus. Branches are also sent to 

 the pancreas and to the duodenum. The hepatic plexus then 

 enters the transverse fissure of the liver, and its branches may 

 be traced to the several lobes and to the gall-bladder. 



c. The Splenic Plexus is but small, and surrounds the sple- 

 nic artery. The few branches of which it is composed, anas- 

 tomose but rarely with each other. Some of them are distri- 

 buted upon the pancreas, along with the pancreatic branches 

 of the splenic artery; others go with the left gastro-epiploic ar- 

 tery to the left extremity and the greater curvature of the sto- 

 mach; the remainder penetrate into the substance of the spleen, 

 through its fissure, along with the branches of the splenic ar- 

 tery. 



3. The Superior Mesenterlc Plexus is derived from the solar, 

 near the superior mesenteric artery; it descends some short 

 distance on the aorta, before it reaches the latter. It passes 

 with the artery between the pancreas and the duodenum, and 

 is then included between the two lamina of mesentery; it is 

 then distributed, by very numerous filaments, along with the 

 branches of the artery, to the whole of the small intestines, to 

 the ccecum, and to the ascending and transverse colon. 



4. The Renal Plexus, one on each side, is derived from the 

 lower lateral part of the solar. Two or three ganglions, on the 



