glia rakud, mille ülesandeks on toetada perifeerse närvisüsteemi neuroneid, Schwann cells (also Gliocytus periphericus; named after physiologist Theodor Schwann) or neurolemmocytes are the principal glia of the peripheral nervous system (PNS). Glial cells function to support neurons and in the PNS, also include satellite cells, olfactory ensheathing cells, enteric glia and glia that reside at sensory nerve endings, such as the Pacinian corpuscle.