title: Synaptic actions on retinal photoreceptors: structural aspects.
mesh_terms: D000818:Animals; D003593:Cytoplasm; D007365:Intercellular Junctions; D008854:Microscopy, Electron; D010786:Photoreceptor Cells / Q000166:cytology*; D012160:Retina / Q000166:cytology*; D013194:Staining and Labeling; D013569:Synapses / Q000166:cytology*; D013572:Synaptic Vesicles; D014426:Turtles