= Schwann cell
{c}
A <Schwann cell> is a <glial cell> of the <peripheral nervous system> that ensheaths <axons>. A myelinating <Schwann cell> wraps its <cell membrane> repeatedly around one segment of one <axon>, producing <myelin>. Adjacent <Schwann cells> leave a <node of Ranvier> between their sheaths, supporting <saltatory conduction>.<Anatomy and Physiology 2e by J. Gordon Betts and others>[Section 12.2, Glial Cells of the PNS and Myelin]{ref}
Other <Schwann cells> support small <axons> without building thick <myelin> sheaths. Thus being associated with a <Schwann cell> does not imply that a peripheral fibre is myelinated. The one-segment arrangement also differs from an <oligodendrocyte>, whose processes can myelinate parts of several central <axons>.
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