178 



Basic Structure of Vertebrates 



TESTIS' UTERUS' I 



UTERINE PLEX 1 



•RLUM TERMINALE 



SYMPATHETIC 

 ~\ \ RECTUM 

 lHAEMORHOID PLEX. 



FIBERS^ 

 PARASYMPATHETIC j p0ST 



Fig. 157. The autonomic nervous system in man. Autonomic ganglions are 

 lettered, autonomic nerves given Arabic numerals; craniospinal nerves are indi- 

 cated by Roman numerals. Relations to brain and spinal cord are shown to the 

 right by a series of cross sections taken at various levels. (1) Lacrimal nerve; (2) 

 oculomotor nerve; (3) nasociliary nerve; (4) Gasserian ganglion; (5) ramus maxil- 

 laris; (6) posterior nasal nerve; (7) Vidian nerve; (8) superficial petrosal nerve; 

 (9) deep petrosal nerve; (10) chorda tympani nerve; (11) minor superficial petrosal 

 nerve; (12) lingual nerve; (13) vagus nerve; (14) inhibitor cordis nerve; (15) 

 bronchodilator nerves; (16) accelerator cordis nerve; (17) vertebral nerve; (18) 

 major splanchnic nerve; (19) minor splanchnic nerve; (20) hypogastric nerve; (21) 

 pelvic nerve; (22) nervus erigens. (A) Ciliary ganglion; (B) sphenopalatine gan- 

 glion; (C) otic ganglion; (D) carotid ganglion; (E) sublingual ganglion; (F) 

 superior cervical ganglion; (G) stellate ganglion; (H) celiac ganglion; (I) inferior 

 mesenteric ganglion. (Redrawn from Ariens Kappers, after L. B. Muller. Courtesy, 

 Neal and Rand: "Chordate Anatomy," Philadelphia, The Blakiston Company.) 



