Schwann cell An insulating cell found in the peripheral nervous system that surrounds nerve fibers (axons). Schwann cells form the myelin sheath that facilitates the conduction of impulses along the nerve. See also myelin; peripheral nervous system.
Schwann cell An insulating cell found in the peripheral nervous system that surrounds nerve fibers (axons). Schwann cells form the myelin sheath that facilitates the conduction of impulses along the nerve. See also myelin; peripheral nervous system.