102 



ANATOMICAL AND PHYSIOLOGICAL STUDIES ON 



100 days. The three condensed age groups show that from 

 1 to 11 days it has increased 80 per cent, while from 11 to 213 

 days it has gained less than 2 per cent. 



TABLE 72 



Wi ighted diameters of the nuclei of the inner and outer hair cells according to the 



turns of the cochlea 



From nine days on the volume of the inner hair cell increases 

 in passing from the base to the apex. During the earlier stages 



