TISSUES. 



101 



cell body. The fibrils are imbedded in a fluid pro- 

 toplasmic substance, the neuroplasm, and the whole 

 surrounded by a delicate membrane, the exolemma. 

 Implantation cone is an elevation that is sometimes 



Brush-like telodendrion. 



Main dendrite. 



Secondary dendrite, - 



Basal dendrite. 



Neuraxis with collaterals. 



Fig. 69. Pyramidal cell from the cerebral cortex of man; chrome- 

 silver method (Bohm and Davidoff). 



present at the junction of the axis cylinder and cell 

 body. 



The medullary sheath (white sheath of Schwann) 

 is a covering to the axis cylinder. This sheath never 



