Fig. 4

Effects of exogenously applied adrenaline on the hemodynamics of the masseter muscle and on SABP during high spontaneous activity in the CST. a Typical examples are shown of the effect of intravenous administration of adrenaline (arrowheads, 100 ng/kg) on changes in the MBF and VC in the masseter muscle on the left side, and SABP before and after (5–30 min) the left CST sectioning (at arrow). The white traces indicate the mean VC for each record. b Mean ± SEM of changes (black bars) in the left MBF (top) and masseter muscle VC (bottom) evoked by adrenaline administration alone (Adrenaline) and 5 min after adrenaline administration in combination with CST sectioning (Adrenaline + CSTs) (n = 5 in each group). Statistical significance of the differences from basal values before adrenaline administration were determined by ANOVA followed by a post hoc test (Fisher’s PLSD). *P < 0.05 vs. basal value. Significant differences between data sets (P < 0.05, P < 0.01) are indicated above the appropriate square bracket (ANOVA followed by a contrast test)