Cockroach reinnervation

[Skews_Me]

A collegue told me that in high school they showed a science film about cockroaches. In particular, it showed an experiment in which the legs and top of the carapice were removed from one cockroach and the body grafted onto a headless cockroach also with the top of its carapice removed; in time, the resulting headless roach was able to walk around under control of the grafted legless body.

This seems a bit farfetched, but what do I know about reinnervation in cockroaches?