Figure 3From: Involvement of peripheral ionotropic glutamate receptors in orofacial thermal hyperalgesia in rats Photomicrographs of pERK-IR cells in Vc after heat or cold stimulation of the tongue (A, B, C and D) or whisker pad skin (E, F, G and H) in the rats with Glu or Veh injection into the tongue or whisker pad skin. Arrows in A, B, E and G indicate the areas where pERK-IR cells were observed.Back to article page