title: Photoreceptor layer composition in the retina of the frog (Rana esculenta).
abstract: Retinas of Rana esculenta frogs were studied by light and electron microscopy in order to establish the photoreceptor layer composition. We found 56% red rods, 9% green rods, 19% single cones, and 16% double cones. This work provides the morphological basis for electrophysiological investigations concerning the mass receptor potential of isolated Rana esculenta retinas.
mesh_terms: D000818:Animals; D008854:Microscopy, Electron; D010786:Photoreceptor Cells / Q000648:ultrastructure*; D011893:Rana esculenta / Q000033:anatomy & histology*; D012160:Retina / Q000648:ultrastructure*