Figure 8.

Overlay of the cumulative distributions of the TRPV1⁺, TRPA1⁺and TRPM8-expressing neurons in the V₁/V₂divisions of the TG. Cumulative distribution of the cross-sectional areas of the total TG neurons in the V₁/V₂ divisions (dashed gray line, the same neurons as in Figure 1F), the TRPV1⁺ neurons (solid black line, the same neurons as in Figure 5E), the TRPA1⁺ neurons (red line, the same neurons as in Figure 6E), and the TRPM8-expressing neurons (dashed green line, the same neurons as in Figure 7E). A Kruskal-Wallis ANOVA with Dunn’s post hoc test reveals that the sizes of TRPV1⁺ neurons are the smallest of the three populations of TG neurons (p < 0.001 and p < 0.05 compared with the TRPA1⁺ and EGFPf⁺ groups, respectively). In contrast, the sizes of TRPA1⁺ neurons are significantly larger than those of the TRPV1⁺ and TRPM8-expressing neurons (p < 0.001 and p < 0.05, respectively).