Figure 2.

Left: fluorescence photomicrographs of labeled nucleated neuronal profiles in superior cervical (A) and trigeminal (C) ganglia after fast blue deposition in supradiscal articular space of rat temporomandibular joint. Right: photomicrographs of same sections showing NPY (B) and CGRP (D) immunoreactive nucleated neuronal profiles after immunostaining with Cy³ conjugated streptavidin. Arrows indicate nucleated neuronal profiles retrogradely labelled with fast blue and displaying NPY-IR or CGRP-IR. Left and right photomicrographs sets are from identical sections viewed through separate filters. Scale bar = 50 µm (A and B) and 70 µm (C and D).