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Fig. 5. Methylene blue staining reveals three axons in the nerve innervating the
dactyl opener. Left and right photos were obtained from sites located 25% and
75%, respectively, along the length of the entire proximaldistal axis
of the dactyl opener muscle. Proximal is at the top of each photo. Arrows show
a small-diameter axon that branches (as do two large diameter axons) distally
to supply branches of the nerve. Scale bars, 50 µm.