THE SYMPATHETIC NERVOUS SYSTEM 233 



branches of the cerebro-spinal nerves, are commonly described 

 as constituting the sympathetic nervous system. This system 

 includes the ganglionated trunks bordering the spinal column, 

 to which reference has just been made, the larger peripheral 

 ganglionated plexuses of the head, thorax, and abdomen, and a 

 very large number of minute sympathetic ganglia scattered 

 everywhere throughout the body. This sympathetic nervous 

 system we have regarded as composed of two imperfectly 

 separable parts: (1) a series of autonomous peripheral ganglia for 

 the local regulation of the organs within which they are found; 

 (2) the neurons of the cerebro-spinal visceral systems which en- 

 able the central nervous system to maintain a regulatory control 

 over the intrinsic autonomous systems. 



LITERATURE 



DOGIEL, A. S. 1908. Der Bau der Spinalganglien des Menschen und der 

 Saugetiere, Jena, G. Fischer, 151 pp., 14 plates. 



HEAD, H. 1893. On Disturbances of Sensation with Especial Reference 

 to the Pain of Visceral Disease, Brain, vol. xvi, pp. 1-133. 



. 1901. The Gulstonian Lectures for 1901, Brain, vol. xxiv, p. 398. 



HEAD and CAMPBELL. 1901. Pathology of Herpes Zoster, Brain, vol. 

 xxiii, p. 353. 



HUBER, G. C. 1897. Lectures on the Sympathetic Nervous System, 

 Jour. Comp. Neur., vol. vii, pp. 73-145. 



KUNTZ, A. 1911. The Evolution of the Sympathetic Nervous System in 

 Vertebrates, Jour. Comp. Neur., vol. xxi, pp. 215-236. 



LANGLEY, J. N. 1900. The Sympathetic and Other Related Systems of 

 Nerves, in Schaefer's Text-book of Physiology, London, pp. 616-696. 



. 1900. On Axon-reflexes in the Preganglionic Fibers, Jour, of Physiol., 

 vol. xxv, p. 364. 



. 1903. The Autonomic Nervous System, Brain, vol. xxvi, pp. 1-26. 



ONUF, B., and COLLINS, J. 1900. Experimental Researches on the Central 

 Localization of the Sympathetic with a Critical Review of its Anatomy and 

 Physiology, Archives of Neurology and Psychopathology, vol. iii, p. 1-252. 



