Fig. 5From: Metabotropic glutamate receptor 5 regulates synaptic plasticity in a chronic migraine rat model through the PKC/NR2B signalChanges of synaptic ultrastructure. a Synaptic ultrastructure in the different groups. (Scale bars = 200 nm) b Magnification of the black rectangle frame from a. (Scale bars = 80 nm; n = 4 each group; PSD,postsynaptic density; SC,synaptic cleft; SV, synaptic vesicle)Back to article page