Fig. 229. Diagram of the sympathetic nervous system to be used along with Fig. 233. The 

 preganglionic fibers are in red, and the postganglionic in black. S.c., superior cervical ganglion; 

 I.e., inferior cervical ganglion; T, stellate ganglion; S.p., great splanchnic nerve; C, ganglia of 

 solar plexus; m., inferior mesenteric ganglia; h., hypogastric nerves; N.E., nervus erigens. The 

 arrows indicate the direction of nerve conduction. The numerals indicate the spinal nerves. 

 (From Howell.) 



