Fig. 10.

At 42 days after removal of the epi-perineurium, differences in the outer and central portions diminished (bar = 500 μm) (A), and the whole nerve was slightly swollen. In the subperineurial area, re-myelinated nerve fibers were noted in sections stained for toluidine blue (arrows) (bar = 50 μm) (B) and in electron microscopy (arrows) (bar = 2 μm) (D). However, nerve fibers that spread to the outside were also observed (arrows) (bar = 50 μm) (C).