What is function of neurilemma?

The neurilemma, also known as the schwann cell sheath or the myelin sheath, is a specialized membrane that wraps around the axons of some neurons in the peripheral nervous system. Its function is to provide a protective covering for the nerve fibers, maintain the structural integrity of the axons, and facilitate the transmission of nerve impulses by increasing the speed of conduction. The neurilemma acts like an insulator that prevents electrical signals from leaking out of the axon and helps to amplify the signals as they travel along the nerve fibers. The presence of the neurilemma also plays a crucial role in the regeneration of damaged axons, as it provides a pathway for the regrowing axons to reconnect with their target tissues. Overall, the neurilemma is an essential component of the nervous system that contributes to the proper functioning of sensory, motor, and autonomic nerves.