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STUDENTS HISTOLOGY 



fine subdivisions form a basket-like network about the bodies of 

 the Purkinje cells of the underlying layer. The arborizations of 

 these Purkinje cells spread out in the molecular layer. 



5. The middle layer is a thin stratum directly beneath the 

 outer layer. The section becomes deeply stained, from the pres- 

 ence of numerous small cells, among and partly concealed by 

 which are the very large ganglion-cells of Purkinje. These are 

 flask -shaped, and are arranged in a single plane, with their long 

 axes placed vertically. A thread-like prolongation may be seen 



FIG. 158. CELL OF PURKINJE. HUMAN CEREBELLUM. GOLGI METHOD. 



penetrating the layer beneath, providing the cell has been cen- 

 trally sectioned. This is the axis -cylinder process, which gives off 

 certain collaterals and becomes the axis -cylinder of a medullated 

 nerve -fiber. Two thick protoplasmic processes project from the 

 outer end of the cell, which ramify in the molecular layer. Their 

 arborizations are luxuriant, and the branchings of the various cells 

 have been likened to a forest. Considering the large size of the 

 cells of Purkinje, their axis -cylinder processes, the richness of the 

 branches of their protoplasmic processes, and the curious basket- 

 work of nerve -fibrils around the cell -bodies, they are among the 





