Peripheral nerve Compressive force crushed nerve heals spontaneously healing basement membrane b regeneration The myelin sheath is a regenerative tissue Following nerve crushing with myelin disruption, the myelin regenerates spontaneously Reversible injury. No contractionPeripheral nerve The myelin sheath is a regenerative tissue. Following nerve crushing with myelin disruption, the myelin regenerates spontaneously. Reversible injury. No contraction. crushed nerve heals spontaneously by regeneration