Fig 5. Linear relationship between the numbers of donor neurons sending their axons across 3 side-to-side cross-bridges and the size of the perineurial windows inserted in the nerves.

Mean (±SE) numbers of tibial (TIB) motoneurons whose axons crossed 3 side-to-side cross-bridges and were backlabelled with dyes applied distal to the cross-bridges. Note that the error bars that are smaller than the size of the circular marker are not visible.