120 



ANATOMY 



TABLE 82 



Summary table giving the fundamental measurements. The values are in micra, 



usually rounded, except in one instance where they are in 



degrees— Wada ('23) 



Age in days 



Body weight, grams 



Body length, mm 



Radal distance between ( a I-II 



spiral ligaments — n <, b III-IV 



(table 2) [ Average 



Radial distance between labium vestibulare 



and habenula perforata 



f Inner zone.... 

 Breadth of membrana J p. ^ 



basilaris (table 9) 1 rr, , , 



[ lotal 



„ ,., . , f Inner zone 



Breadth of membrana I ,-, . 



tectoria (table 4) I rr. ^ i 



[ I otal 



Thickness (table 4) 



Distance from hab. perf. to foot of inner 



pillar (table 15) 



From hab. perf. to outer corner of inner 



pillar 



Distance between the inner and outer 



pillars 



Distance from hab. perf. to the inner cor- 

 ner of the outer pillar 



Basal width of inner pillar (table 19) 



Basal width of outer pillar (table 29) 



Greatest height of greater epithelial ridge 



(table 3S) 



Height from basal plane to surface of pillar 



cells (table 46) 



Length of inner pillar without head (table 



61) 



Length of outer pillar without head (table 



61) 



Height of tunnel of Corti (table 49) 



Length of inner hair cells 



Diameters of nuclei (table 68) 



Length of outer hair cells 



Diameters of nuclei (table 68) 



Height of papilla spiralis at third scries of 



outer hair cells (table 52) 



Total length of Deiters' cells (table 89) ... . 

 Height of Hensen's supporting cells (table 



55) 



Angle of lam. retic. with membr. basil, in 



degrees (table 58) 



Spiral ganglion (table 95) 



Diameter — cells 



Diameter — nuclei 



Vestibular ganglion (table 115) 



Diameter — cells 



Diameter— nuclei 



546 

 255 

 213 

 1680 

 1265 

 1473 



119 

 94 

 113 

 207 

 133 

 163 

 295 

 34 







15 



63 



78 

 15 

 16 



49 



59 

 44 

 29 



6.6 

 26 



6.2 



64 

 78 



16.9 

 9.4 



25.3 

 12.2 



