It is composed of individual axons in endoneurial connective tissue and is surrounded by a sleeve of perineurium. Groups of fascicles are common and are defined by a thickening of the internal ...
Axon degeneration. III Loss of endoneural tube continuity. Perineurium intact. Axon degeneration. IV Endoneural tube and perineurium disrupted. Epineurium intact. Axon degeneration. Neurotmesis V ...