258 



THE RHOMBENCEPHALON. 



and Horsley) and probably have these endings in the human 

 brain, with the possible addition of the inferior olivary nucleus. 

 The corticipetal fibers, which rise either in other parts of the 

 brain or in the spinal cord and ganglia, terminate in varicose 

 fibrils chiefly in the superficial layer. These fibrils entwine about 

 the "primary and secondary stems of the Purkinje dendrites" 

 (Cunningham). 



Fig. 82. Section of cerebellar gyrus made parallel with its free border. 

 Diagrammatic. (After Kolliker from Cunningham.) 



G R. Small granules with claw -shaped dendrites and long axones that run out into the 

 gray layer and divide T like. N. Axone of small granule. P. Purkinje cells seen in profile, 

 showing border of dendritic planes in gray layer. 



(2) The deep, granular layer (stratum grantilosum, Figs. 

 82 and 83) is of uniform thickness. It blends centrally with the 

 medullary projection. It contains a few superficial granules 

 which are comparatively large in size and many small granules 

 in which the nucleus occupies nearly the whole cell-body. 



Cells of the Granular Layer. The granules are small, round, 

 or stellate cell-bodies, largest near Purkinje's cells, closely packed 

 externally, but scattered among the projection fibers centrally. 



