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INTRODUCTION TO NEUROLOGY 



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Fig. 98. Two transverse sections through the mammalian retina: A, 

 Layer of rods and cones; ar, internal arborizations of bipolar neurons related 

 to the cones; ar', internal arborizations of bipolar neurons related to 

 the rods; B, outer nuclear layer; C, outer molecular layer; c, cones; ex., 

 contact of bipolar neurons with branches of the cone fibers; c.l., bi- 

 polar neurons related to cones; e.g., cone granules or nuclei of cones; 

 c.n., centrifugal nerve-fiber; c.r., contact of bipolar neurons with ends of 

 rod fibers; D, inner nuclear layer; d.s., diffuse neuroglia elements; E, inner 

 molecular layer; F, ganglionic layer; G, layer of nerve-fibers; g, neurons of 

 the ganglionic layer; h, horizontal cells; M, supporting fiber of Miiller; 

 r, rods; r.b., bipolar neurons related to rods; r.g., rod granules or nuclei of 

 rods; s.g., stratified ganglion cells; s.s., stratified neuroglia elements. (After 

 Ram6n y CajaL) 



