300 ELEMENTARY PHYSIOLOGY. [XXVIII. 



7. The inner and the outer rod of Corti. 



& The three or four outer hair cells, 

 long irregular cells, not perpendicular 

 to the membrane, but bending inwards, 

 with short rod-like processes projecting 

 from the surface, and deeply seated 

 nucleus; occasionally two nuclei are 

 seen in a cell. 



77. The rings of the reticular membrane 

 surrounding the tops of the inner and 

 outer hair cells. 



6. Cells passing from columnar to cubical, 

 inclining inwards, like the outer hair 

 cells. 



c. The membrana tectoria proceeding from a 

 projection of tissue on the lamina spiralis, 

 thence enlarging and forming a more or less 

 distinct pad above the organ of Corti; in the 

 preparation it will probably be considerably 

 shrunken. 



d. The nerves running along the lamina spiralis 

 towards the basilar membrane. 



