106 



ANATOMY 



The enlargement of the ganghon cells is accompanied by a 

 relative overgrowth of the cytoplasm. A study of the volume 

 of these cells shows it to increase in proportion to the area of 

 the skin to which the fibers are distributed — and the area of 



TABLE 67 

 Comparing the diavielers of the spinal ganglion cells in albino rats of different 

 sizes with the diameters of the corresponding dorsal root fibers and of the fibers 

 just distal to the ganglion. In the last two columns are given the respective ratios. 

 Data condensed from tables 2 and 3 (loc. cit.) 



TABLE 68 

 Comparing the computed diameters of the spinal cord cells in albino rats of dif- 

 ferent sizes with the diameters of the corresponding ventral root fibers. In the 

 last column are given the ratios. Data condensed from tables 2 and 6 {loc. cit.) 



the axes of the afferent fibers also increases in proportion to the 

 increase of skin area. 



The growth of large ventral horn cells is comparatively slight 

 and the nucleus-plasma relation remains nearly constant — but 



