Table 1.
Synaptic Inventory of Cell Types in the VA7 Glomerulusa
| VA7 | vol μm3 | surf μm2 | total # | pre # | post # | ratio | sy μm3 | pre μm3 | post μm3 | sy μm2 | pre μm2 | post μm2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PN | 95 | 1002 | 659 | 165 | 494 | 0.33 | 6.92 | 1.73 | 5.19 | 0.66 | 0.16 | 0.49 |
| OSN | 25 | 240 | 95 | 80 | 15 | 5.33 | 3.80 | 3.20 | 0.60 | 0.40 | 0.33 | 0.06 |
| LN | 6 | 60 | 43 | 23 | 20 | 1.15 | 7.54 | 4.04 | 3.51 | 0.72 | 0.39 | 0.33 |
Summary of the quantitative measures derived from all profiles of PN, OSN‐type, and LN‐type cells in the VA7 glomerulus. The data are based on the analysis of 17 PN profiles, 15 OSN‐type profiles, and 9 LN‐type profiles. Pre‐ and postsynaptic sites were counted along each reconstructed profile, and their number and density were calculated per neurite volume and surface. For full statistics, see Supplementary Table S1.
Abbreviations: vol, neurite volume; surf, neurite surface; total, number of all synapses counted per profile; pre, presynaptic site (output synapse); post, postsynaptic site (input synapse); ratio, number of out‐to‐input synapses; sy, synapse; PN, projection neuron; LN, local interneuron; OSN, olfactory sensory neuron.