nerve obsolete peripheral nerve true peripheral nerve tree UBERON:0003377 A cable-like bundle of peripheral axons (the long, slender projections of neurons). A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons. Nerves are found only in the peripheral nervous system. In the central nervous system, the analogous structures are known as tracts[WP]. UBERON:0002003 See https://github.com/obophenotype/mouse-anatomy-ontology/issues/6 nerve part of peripheral nervous system Neural tree (organ) which is directly continuous with the neuraxis. Examples: phrenic nerve, radial nerve, ilioinguinal nerve, sciatic nerve.