Figure 3From: Contribution of anterior cingulate cortex and descending pain inhibitory system to analgesic effect of lemon odor in mice Photomicrographs showing representative examples of c-Fos immunoreactivity in the rostral anterior cingulate cortex (rACC, A), lateral periaqueductal grey (lPAG, B), ventrolateral periaqueductal gray (vlPAG, C), nucleus raphe magnus (NRM, D), locus coeruleus (LC, E), and the lumbar spinal dorsal horn (SDH, F) of control mice and mice exposed to lemon oil (rACC: G, lPAG: H, vlPAG: I, NRM: J, LC: K, SDH, L). Black dots indicate the c-Fos expression. Scale bar = 200 μm.Back to article page