Mean size ± SD of GABA-LIR varicosities in three different fiber types running across the sensory neurons of a VS-3 organ
| Length of varicosities [μm] | Width of varicosities [μm] | |
|---|---|---|
| Thick fiber | 8.5 ± 2.5 (4.7–14.5; n = 29) | 2.6 ± 0.65 (1.8–3.9; n = 29) |
| Medium fiber | 5.0 ± 1.2 (2.7–7.3; n = 27) | 1.7 ± 0.6 (0.7–3.3; n = 27) |
| Thin fiber | 1.7 ± 0.5 (0.7–2.5; n = 25) | 1.1 ± 0.5 (0.4–2.1; n = 25) |
Mean values for length and width differ significantly in all three fiber types (one-sided t test; p < 0.001 in each case). Numbers in parentheses, range between extreme individual values and sample size, n.