XXXI.] 



MEDULLA OBLONGATA. 



349 



Objects seen on the Surface of the Medulla Oblongata. 



( Anterior median. 

 A. Fissures. -I Posterior median. 

 iTwo lateral. 



I. Anterior area 

 (between A 



B. Areas. 



rior area | Anterior pyramids . 



.M. F. and | Decussat i of 1)yramids . 



^^2?. iQUroyboay. 



and 



fillet. 



3. Posterior- 

 area. 



C. External Arcifonn Fibres. 



( Restiform body. 



Lower l Fuuiculus of Rolando and its tubercle. 

 Part. ) Funiculus cuneatus and its tubercle. 



( Fuuiculus gnicilis and its clava. 



F1 r f f Urth ventricle ' 



Table of Grey Matter of the Medulla Oblongata. 



CORD. MEDULLA. 



, Nucleus lateralis. 



Anterior part of formatio reticularis. 

 Nucleus of the fasciculus teres. 



Nucleus of Rolando. 



Posterior part of formatio reticularis. 

 ( Nucleus of the funiculus gracilis (clava). 

 -I Nucleus cuneatus. 

 1 Nucleus on floor of fourth ventricle. 



Grey 

 in the Medulla. 



Nucleus of external arciform fibres. 



CEREBELLUM. 



Methods. The cerebellum is hardened in the same way as the 

 cord. It is advantageous, however, to wash out the hlood-vessels 

 of the whole brain with Miiller's fluid, and afterwards to distend 

 them with the same fluid. 



If ammonium bichromate be used (2 percent.), the pieces harden 

 quicker than in the case of the cord. 



For the application of Golgi's method, see p. 345- 



3. V.S. Cerebellum, i.e., including the grey and white mattr- 



