THL: PERIPHERAL NERVOUS SYSTEM. 4© 7 



nailer superior mesenteric ganglion (/); the two are con- 



I ( cted by two strong" nerve-trunks. 



The coeliac ganglid. / receives from the sympathetic {a), 

 in addition to the great • | rhnic nerve, two (or three) lesser 



Fig. 164.— Sympathetic and Vagus in the Abdomen (somewhat Schematic). 

 I, stomach; 2, crus and cut edge of diaphragni; 3, aorta; 4, cceliac artery; 5, 

 superior mesenteric artery; 6, kidney, 7, inferior mesenteric artery; 8, large intes- 

 tine, a, main trunk of sympathetic; l>, great splanchnic nerve; c, lesser splanchnic 

 nerves; d, cceliac (or semilunar) ganglion; r, creliac jilexus; /. superior mesenteric 

 ganglion; g. superior mesenteric plexus, following the artery; //, aortic plexus; /, 

 inferior mesenteric ganglion and ])Iexus; y', suprarenal plexus on suprarenal t)ody; /', 

 renal plexus following renal artery; /. ventral oesophageal branch of vagus, forming 

 anterior gastric plexus; m, dorsal oesophageal branch of vagus, forming posterior 

 gastric plexus. 



splanchnic nerves (c), which arise from the main trunk of the 

 sympathetic, the first just as it reaches the abdominal cavity, 

 the second one or two centimeters caudad of the diaphragm. 



From the coeliac and superior mesenteric ganglia a network 

 of nerves passes in all directions to the abdominal viscera. 



