1.2.The laminar structure of the retina photo- rods receptors cones Vertebrate retinas are composed of 3 ONL layers of nerve cell bodies and 2 layers of synapses. OPL horizontal bipolar cells INL Outer nuclear layer(ONL):cell bodies of the amacrine rods and cones cells Inner nuclear layer(INL):cell bodies of bipolar,horizontal and amacrine cells ganglion cells,axons Ganglion cell layer(GCL):cell bodies of ganglion cells Dividing these nerve cell layers are two neuropils where synaptic contacts occur. Outer plexiform layer(OPL):where photoreceptors,vertically running bipolar cells and horizontally oriented horizontal cells connect. Inner plexiform layer(IPL):where the bipolar cells and ganglion cells connect, and amacrine cells influence and integrate the ganglion cell signals1.2. The laminar structure of the retina Vertebrate retinas are composed of 3 layers of nerve cell bodies and 2 layers of synapses. Outer nuclear layer (ONL): cell bodies of the rods and cones Inner nuclear layer (INL): cell bodies of bipolar, horizontal and amacrine cells Ganglion cell layer (GCL): cell bodies of ganglion cells Dividing these nerve cell layers are two neuropils where synaptic contacts occur. Outer plexiform layer (OPL): where photoreceptors, vertically running bipolar cells and horizontally oriented horizontal cells connect. Inner plexiform layer (IPL): where the bipolar cells and ganglion cells connect, and amacrine cells influence and integrate the ganglion cell signals