92 



ANATOMY 



The area of the axis tends to increase with age and in the 

 fifth nerve root is on the average about half the area of the 

 entire fiber, table 53. 



TABLE 50 

 Diameters of Purkinje cells and their nuclei 



TABLE 51 

 Oculomotor nerve 



The vertical averages for the area of the axis from the 

 data in table 53 are: 



First branch 44 per cent 



Second branch 47 per cent 



Third branch 48 per cent 



Fifth nerve root 50 per cent 



Range 



40 to 48 per cent 

 42 to 55 per cent 

 44 to 50 per cent 

 46 to 55 per cent 



