Schwann cell

Definition

Schwann cells are a type of glial cell located in the peripheral nervous system that wrap around axons, creating a myelin sheath which facilitates faster electrical impulses. They also aid in the regeneration of damaged nerve fibers.

Related terms

Myelin Sheath:

A fatty layer that surrounds the axon of some neurons, increasing the speed at which impulses propagate along the myelinated fiber.

Axon:

A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Peripheral Nervous System (PNS): The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord