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Three branching modes can be deduced from sensory axons in the spinal cord: (A) bifurcation (arrow head in green); (B) collateral formation from stem axons (arrow head in red); and (C) terminal branching in specific layers of the spinal cord (arrow head in blue). DREZ, dorsal root entry zone; DRG, dorsal root ganglia; DSC, dorsal spinal cord.
