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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:notochord
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Accession:UBERON:0002328 term browser browse the term
Definition:A flexible rod-shaped body found in embryos of all chordates. It is composed of cells derived from the mesoderm and defines the primitive axis of the embryo. In some chordates, it persists throughout life as the main axial support of the body, while in most vertebrates it becomes the nucleus pulposus of the intervertebral disc. The notochord is found ventral to the neural tube.
Comment:The notochord appears early in embryogeny and plays an important role in promoting or organizing the embryonic development of nearby structures. In most adult chordates the notochord disappears or becomes highly modified. In some non-vertebrate chordates and fishes the notochord persists as a laterally flexible but incompressible skeletal rod that prevents telescopic collapse of the body during swimming[TOLWEB]
Synonyms:exact_synonym: embryonic notocord;   notocord
 related_synonym: notochorda
 xref: AAO:0000327;   BTO:0001768;   CALOHA:TS-0690;   EHDAA2:0001277;   EHDAA:1241;   EHDAA:6021;   EMAPA:16191;   EV:0100002;   FMA:85521;   GAID:1311;   MAT:0000281;   MESH:D009672;   NCIT:C12463;   SCTID:308820002;   TAO:0000135;   UMLS:C0028439;   VHOG:0000199;   VSAO:0000032;   Wikipedia:Notochord;   XAO:0000055;   ZFA:0000135;   http://evolution.berkeley.edu/evolibrary/images/history/notochords.jpg



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Term paths to the root
Path 1
Term Annotations click to browse term
  UBERON ontology 0
    anatomical entity 0
      material anatomical entity 0
        anatomical structure 0
          mesoderm-derived structure 0
            notochord 0
              flexural organ 0
              floor plate + 0
              notochord posterior region 0
              nucleus pulposus 0
              post-embryonic notochord + 0
              vacuolated notochordal tissue 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
                  embryonic tissue 0
                    germ layer / neural crest 0
                      germ layer 0
                        ectoderm 0
                          ectoderm-derived structure 0
                            ecto-epithelium 0
                              notochordal plate 0
                                notochord 0
                                  flexural organ 0
                                  floor plate + 0
                                  notochord posterior region 0
                                  nucleus pulposus 0
                                  post-embryonic notochord + 0
                                  vacuolated notochordal tissue 0
paths to the root