[Separation of peripheral nerve fascicles. Electron microscopic study]

We have examined the sciatic nerve of cats and rabbits. In cats, the epineurium was removed for 10 mm length, and in rabbits for 30 mm. The fascicles of the nerves were separated by a scalpel using an operating microscope. The nerves were observed by electron microscopy, in cats 30 days and in rabbits 90 days after operating. In cats, the internal structure of fascicles was injured and circular parts were formed by fibrocytes which have included axons and Schwann cells. The basal lamina of Schwann cells was injured particularly. In rabbits, a new construction was observed in the internal structure of the nerve. The perineurium was repaired by cells with basal lamina and with 2...5 lamella.