Abstract
This paper reviews the anatomy of normal peripheral nerve, and the changes taking place during nerve degeneration. The following are then taken up; phases of regeneration, the biology of axon elongation, myelination, the discredited theory of neurotro-pism, velocity of regeneration (in sensory, motor, and autonomic fibers), maturation, functional recovery, atrophy in relation to functional recovery, fiber branching, abnormal destinations, the effect of chemical and other factors and clinical experiences.