PLATES 



REFERENCE LETTERS 



AF, lamina of peripheral auditory 

 nerve fibers 



AAZ, attached axial zone of tectorial 

 membrane 



BM' basilar membrane 



CC, cells of Claudius 



DC, supporting cells of Deiters 



E, endothelium lining scala tympani 



ES, epithelioidal syncytium 



P\ auditory nerve fibers to outer hair 

 cells 



GR, greater epithelial ridge or thick- 

 ening 



HC, outer supporting cells (of Hen- 

 sen) 



HS, Hensen's stripe 



HT, Huschke's (auditory) teeth 



ISC, inner supporting cells of spiral 

 organ 



ISS, internal spiral sulcus 



I AC, inner auditory hair cells 



./, region of junction between fibrils 

 and producing cells 



L, lighter outer margin of young 

 greater ridge 



LF, fibrils produced by cells of lesser 

 epithelial ridge 



LM, liquefying mesenchymal tissue 



LR, lesser epithelial ridge or thick- 

 ening 



NS, Nuel's space 



OZ, outspanning zone 



PC, peripheral condensation of in- 

 complete structure 



SG, spiral ganglion 



SL, spiral ligament 



SP, spiral prominence, stria vascul- 

 aris 



ST, scala tympani 



SV, scala vestibuli 



TM, tectorial membrane 



VL, vestibular lip of spiral limbus 



VM, vestibular (Reissner's) mem- 

 brane 



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