1 1 o Neurological Technique 



For a description of the various structures and their interrela- 

 tions, microscopic as well as macroscopic, that part of Quain's 

 Anatomy entitled " The Spinal Cord and Brain"' is suggested. 

 This, being one of the older books, does not use the [BNA] 

 but many of the older terms are the same as the [BNA] 

 and the text of Quain is clear and brief, and the figures are 

 good. 



If it is desired to make a more elaborate and critical study 

 of the histology and microscopic anatomy of the central nervous 

 system, the best reference-book up to date for this purpose is 

 The Nervous System, by Dr. L. F. Barker.^ This work con- 

 tains a very large number of figures, gives a very complete 

 bibliography, and also discusses the bearing of the more impor- 

 tant papers. 



In the following dissection it is presupposed that the speci- 

 men has been removed and preserved in formalin as directed in 

 XIX, p. 105. Before the dissection begins, the specimen is 

 supposed to have been removed from the formalin and placed 

 for an hour or so in water (see XIX, p. 108). When it is 

 necessary to suspend the dissection for twelve hours or more, 

 the specimen should be returned to the formalin solution. 



If the student has more than one specimen at his disposal, 

 so much the better. It was thought advisable, however, to 

 restrict the outline to only such dissection as can be accom- 

 plished with one spinal cord and one brain. 



DISSECTION. 



A. MEDULLA SPINALIS (SPINAL CORD). 



I. EXTERNAL FEATURES. 



(a) Meninges and general topography : Separate the medulla 

 spinalis from the medulla oblongata at the level of the first N.3 

 cervicalis and lay the medulla spinalis out straight, dorsal side 

 up. Observe that the organ proper is enveloped by inclosing 



' Quain's Anatomy (Schafer), Vol. Ill, Part I, 1895. 



' The Nervous System and its Constituent Neurones. Appleton & Co., 1899. 



3N ^ nervus ; Nn = nervi. 



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