Fig. 2. L4-L5 spinal cord segments with fluorescent markers. (A) FDA afferent fiber (scale bar, 100 µm). Note a limited number of afferent fibers in the spinal cord ventral horn (the Rxed-laminae schematic superimposed). (B) A FDA single marked interneuron. The FDA in the L5 dorsal root (scale bar=10 µm). (C) FDA and RDA mixture applied in L4 dorsal root and FDA in the L5 dorsal root. Several interneurons were stained in an orange hue (scale bar=10 µm). In A, B, and C, different spinal cord tissues are shown.
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