Table 2. Comparison of axonal and axon terminal ribbon synapses of the calbindin ON cone bipolar cell in length and surface area of the synaptic ribbon and in postsynaptic density area.
| Axonal Ribbon Synapse (n = 7) | Axon Terminal Ribbon Synapse (n = 7) | ||
| Presynaptic | Total Ribbons | 24 | 7 |
| Average of Individual Maximum Ribbon Length on the Vertical Section (nm) | 108 | 201 | |
| Average of Individual Ribbon Surface Area (nm2) | 9353 | 45795 | |
| Average of Ribbon Surface Area per Synapse (nm2) | 32066 | 45795 | |
| Postsynaptic | Total Postsynaptic Elements | 7 | 14 |
| Average of Postsynaptic Density Area (nm2) | 101637 | 17451 |