Describe the three different forms of Schwann cells?

Schwann cells are glial cells in the peripheral nervous system that support neurons and facilitate nerve regeneration. There are three forms: myelinating Schwann cells, which wrap around axons to form myelin sheaths that enhance signal conduction; non-myelinating Schwann cells, which support unmyelinated axons and maintain their health; and repair Schwann cells, which proliferate and aid in the regeneration of damaged nerves after injury. Together, these forms play crucial roles in nerve function and repair.