764 



THE NEKVOUS SYSTEM. 



detached portion at the lower end is named the aortico-renal ganglion. Other small 

 scattered masses of cells are present in the cceliac plexus. At the upper end the 

 coeliac ganglion receives the greater splanchnic nerve. The aortico-renal ganglion 



Coeliac plexus '-*^l 



Lesser splanchnic nerve ----&& 



Superior mesenteric plexus /j^ 



Aortic plexus .- 

 Spermatic plexus -- 



Abdominal sympathetic chain- 

 Inferior mesenteric plex 



Hypogastric nerves -j 



v 1 



Greater splanchnic nerve 

 Abdominal sympathetic chain 



- -Coeliac ganglion 

 -Suprarenal plexus 



Lowest splanchnic nerve 

 Aortico-renal ganglion 



Renal plexus 



White ram us communicans from 

 -- second lumbar nerve to 

 sympathetic trunk 



- Second lumbar nerve 



Hypogastric plexus _ 

 Right pelvic plexus . 



Cord connecting 

 abdominal and pelvic 

 sympathetic 

 Left pelvic plexus 



Visceral branch of 

 second sacral, nerve 



Pelvic sympathetic 

 trunk 



- Visceral branch of 

 third sacral nerve 



Branch from pelvic 

 '- sympathetic trunk to 

 pelvic plexus 



Left pelvic plexus 

 Hfemorrhoidal plexus 



Branch from pelvic sympathetic 

 trunk to pelvic plexus 



Nerves to corpus 

 cavernosum penis 



Vesical p 

 Cavernous plexus 

 Nerves to corpus cavernosum urethrse 



FIG. 641. THE SYMPATHETIC IN THE ABDOMEN AND PELVIS. 



at its lower end receives the lesser splanchnic nerve. Branches from the 

 ganglion radiate in all directions medially to join the cceliac plexus, upwards 

 to form the diaphragmatic plexus, laterally to the suprarenal plexus, downward 

 to the renal, superior mesenteric, and aortic plexuses. 



