Electron microscopy; proceedings of the Electron microscopy; proceedings of the Stockholm Conference, September, 1956 electronmicrosco00euro Year: 1957 f^ ^^y^lfj J ^ %%%%%%%%%%%%%%%%^ â '.' >â¢, t 1^ A: Fig. 3. A double cone. The inner segment of the proximal cell and part of the inner segment of the distal cell. Notice the ditVerence of the cytoplasm in the two cells. Magnifica- tion X 5600. that of the plasma membranes at retinal synaptic contacts (6). Electrophysiologic studies by Svaetichin (8) per- formed on twin cones in the fish retina have given support to the interpretation of tw
Electron microscopy; proceedings of the Electron microscopy; proceedings of the Stockholm Conference, September, 1956 electronmicrosco00euro Year: 1957 f^ ^^y^lfj J ^ %%%%%%%%%%%%%%%%^ â '.' >â¢, t 1^ A: Fig. 3. A double cone. The inner segment of the proximal cell and part of the inner segment of the distal cell. Notice the ditVerence of the cytoplasm in the two cells. Magnifica- tion X 5600. that of the plasma membranes at retinal synaptic contacts (6). Electrophysiologic studies by Svaetichin (8) per- formed on twin cones in the fish retina have given support to the interpretation of twin cones as representing a system which is stimulated by two complementary colors. The contact surface between the inner segments has been interpreted by Svae- tichin to act in a similar way as a synapse. The morphology of the double cones of the toad retina makes such an assumption quite justifiable from a morphologic point of view. ^i ' f V ' .^ 'l/M n Fig. 4. The plasma membranes between the cells in a double cone. To the left the proximal cell with a part of its mitochon- dria aggregation and the paraboloid structure. Magnifica- tion 58,000.
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