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CROSS-SPECIES ANATOMY - ANNOTATIONS

The Basic subset of the UBERON integrated, cross-species anatomy ontology is downloaded weekly from http://berkeleybop.org/ontologies/uberon/basic.obo. For more information about this ontology see the "About" page on the UBERON website at http://uberon.github.io/about.html.

Term:nerve fiber
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Accession:UBERON:0006134 term browser browse the term
Definition:A threadlike extension of a nerve cell and consists of an axon and myelin sheath (if it is myelinated) in the nervous system. There are nerve fibers in the central nervous system and peripheral nervous system. A nerve fiber may be myelinated and/or unmyelinated. In the central nervous system (CNS), myelin by oligodendroglia cells is formed. Schwann cells form myelin in the peripheral nervous system (PNS). Schwann cells also make a thin covering in an axon without myelin (in the PNS). A peripheral nerve fiber contains an axon, myelin sheath, schwann cells and its endoneurium. There are no endoneurium and schwann cells in the central nervous system.
Synonyms:exact_synonym: nerve fibre;   neurofibrum
 related_synonym: Nerve fibers;   neurofibra
 xref: BAMS:nfi;   FMA:5914;   MESH:D009412;   SCTID:88545005;   Wikipedia:Nervous_system_fiber
 external_ontology: n/a NCBITaxon:9606



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Term paths to the root
Path 1
Term Annotations click to browse term
  UBERON ontology 0
    anatomical entity 0
      anatomical cluster 0
        multi cell part structure 0
          nerve fiber 0
            myelinated nerve fiber 0
            serosal nerve fiber of appendix 0
            sympathetic afferent fiber 0
            trigeminal nerve fibers + 0
            unmyelinated nerve fiber 0
Path 2
Term Annotations click to browse term
  UBERON ontology 0
    anatomical entity 0
      material anatomical entity 0
        anatomical structure 0
          multicellular anatomical structure 0
            multicellular organism 0
              embryo 0
                embryonic structure 0
                  presumptive structure 0
                    future nervous system 0
                      nervous system 0
                        neuron projection bundle 0
                          nerve fasciculus 0
                            nerve fiber 0
                              myelinated nerve fiber 0
                              serosal nerve fiber of appendix 0
                              sympathetic afferent fiber 0
                              trigeminal nerve fibers + 0
                              unmyelinated nerve fiber 0
paths to the root