GENERAL HISTOLOGY. 



often pass over into peripheral nerves, 

 so the morphological distinc- 

 tion from dendrites lies in the 

 greater distance of the region 

 of branching from the body 

 of the ganglion cell. In bi- 

 polar ganglion cells both pro- 

 cesses are neu rites, the cell 

 itself thus being an element 

 intercalated in the course of 

 a nerve-fibre, as also is a uni- 

 polar ganglion cell. The single 

 process of this divides near 

 the cell in a T-shaped man- 

 ner, so that the unipolar cell 

 is to be regarded as a bipolar 

 ganglion cell in which the two 

 neurites are united for a short 

 distance. 



This conception is intel- 

 ligible in the light of recent 

 researches on the structure of 

 the ganglion cell and its pro- 

 cesses (fig. 52). Both consist 



They branch at their tips, 



FIG. 51. Multipolar ganglion cell of man, 

 (After Gegenbaur.) a, axon. 



FIG. 52. Motor ganglion cell from the thoracic region of the spinal cord of a dog, 

 (After Bethe.) n, nucleus. 



of extremely fine fibrillae, and inter- and perifibrillar substances 

 cementing them together. Each process brings a bundle of 



