METHOD XX. 



AN OUTLINE FOR THE DISSECTION OF THE CENTRAL 

 NERVOUS SYSTEM. 



In the following outline or guide for the direction of the 

 central nervous system the [BNAj nomenclature is used 

 almost exclusively. This was thought advisable, since its adop- 

 tion is rapidly becoming universal, and the earlier the student is 

 familiar with it, the better. In cases in which a name given in 

 the [BNA] differs intrinsically from the name usually given 

 in the older English text-books for the same structure, the latter 

 name is given in addition to the [BNA] name. A full 

 classified list of the [BNA] will be found on pp. 136 to 172. 



The outline is based upon the anatomy of the human central 

 nervous system. However, with the exception of certain of the 

 external features of the cerebrum and cerebellum, it will apply 

 equally well to the central nervous system of any of the larger 

 mammals. 



The dissection is restricted to the macroscopic anatomy of 

 the organ, and therefore the outline calls for the identification 

 and study of such structures only as can be seen with the naked 

 eye. A dissecting lens magnifying 8-10 diameters will be of 

 frequent aid in making the more detailed observation of the 

 parts. 



That part of Toldt's Anatomical Atlas which deals with the 

 nervous system' is especially recommended as an aid in the dis- 

 section. The atlas is bound in separate volumes, any of which 

 may be obtained from the dealers in medical books. It uses 

 the [BNA] exclusively, and each illustration has the names 

 of the various structures represented in it attached to the struc- 

 tures. 



• Dr. Carl Toldt, Anatomischer Atlas, 6. Lieferung (" Die Nervenlehre, etc."), 

 1901 



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