<prompt> Bipolar cells is seen in: March 2005Sympathetic ganglionRetinaCochlear ganglionParasympathetic ganglion  <response>: Ans. B: RetinaRetina is organized in 10 layers and contains rods and cones, which are the visual receptors, plus four types of neurons:Bipolar cellsGanglion cellsHorizontal cellsAmacrine cells 