'.'! 



ANATOMICAL AND PHYSIOLOGICAL STUDIES ON 



o 



25 



50 



50 100 200 300 400 500 



Chart 33 The weighted volume of inner and outer hair cells combined, 

 and of their nuclei in cubic micra, tables 67 and 69. 



Weighted volume of inner and outer hair cells combined. 

 Weighted volume of nuclei of inner and outer hair cells combined. 



The outer hair cells have a much more cylindrical form, 

 their upper terminal disk is not so wide and not round, but 

 hexagonal. They become a bit thin in the neck, then wide in 

 the body. Their lower end is rounded. In order, however, to 

 determine the cell volume, the cell form has been taken as that 

 of a cylinder. For computation, the average of the diameters 

 measured in three places, the end disk, neck, and cell body, was 

 taken as the diameter and the length of the cell as the length of 

 the cylinder. From these data the volume of the cylinder was 

 computed. 



