What are glial cells of the peripheral nervous system?

Glial cells of the peripheral nervous system (PNS) primarily include Schwann cells and satellite cells. Schwann cells are responsible for the myelination of peripheral nerve fibers, which enhances the speed of electrical signal transmission. Satellite cells support and protect neuronal cell bodies within ganglia, providing structural support and regulating the microenvironment. Together, these glial cells play crucial roles in maintaining neuronal health and facilitating communication within the PNS.