Serotonin Receptor 2A/C Is Involved in Electroacupuncture Inhibition of Pain in an Osteoarthritis Rat Model

Figure 4

Co-localization of Fos and 5-HT in the nucleus raphe magnus. (a) The 5-HT-immunoreactive neurons; (b) Fos-immunoreactive profiles; (c) Merged graphs of (a) and (b). Arrows indicate double-labeled 5-HT/Fos neurons (yellow). Arrow heads point to single-labeled neurons.

(a)

(b)

(c)