MEDULLA OBLONGATA OF AMBLYSTOMA 



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Fig. 50 Detail of the relation of fibers of the sensory root of the trigeminus as 

 seen in horizontal section of the left side. Golgi method. X 100. The figure is 

 a composite, the outline and the three coarse fibers being drawn from one prep- 

 aration and the fascicle of fine fibers sketched in from the adjacent section ven- 

 trally. The rostral end of the oblongata is at the right and the root fibers are 

 seen to divide into slender ascending branches and coarser descending branches 

 which form the spinal V root (r.F.) 



Fig. 51 Parasagittal section through the oblongata, illustrating two root 

 fibers of the VIII nerve. Golgi method. X 100. The section is very close to 

 the lateral surface of the oblongata and is obliquely inclined. Each of the two 

 root fibers (r.VIII.) is seen to divide into ascending and descending branches and 

 the details of the terminals of the descending branches are shown. 



