peripheral nerve myelin 2013-03-13T19:18:05Z A condition in which the major influencing factor is peripheral nerve myelin, a lipoproteinaceous substance largely composed of phospholipids and proteins, which forms the sheaths surrounding the axons of peripheral nerves, that is, nerves that are not part of either the brain or spinal cord of the organism. PNM PNS myelin XCO:0000292 experimental_condition_ontology jsmith peripheral nervous system myelin myelin