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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:trigeminal placode complex
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Accession:UBERON:0003070 term browser browse the term
Definition:A neurogenic placode that arises at the level of the midbrain-hindbrain boundary and develops into a trigeminal ganglion.
Comment:[homology-note] "The dorsolateral placodes (trigeminal and vestibular) develop from ectoderm lateral to the brain (...). In summary, the collective term 'placodes' refers to some rather different structures, probably with different evolutionary origins. Some sensory placodes (at least the otic and olfactory) may have homologues in basal chordates. Even if this is so, it is apparent that they were elaborated considerably during early vertebrate evolution. Epibranchial and dorsolateral placodes appear to be new; we infer that their origin depended on the evolution of specific inductive signals.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000109", ontology="VHOG", source="DOI:10.1073/pnas.97.9.4449 Shimeld SM and Holland PW. Vertebrate innovations. PNAS (2000)", source="http://bgee.unil.ch/"}; [terminology-note] "Consider naming this 'trigeminal placode complex'. Also, Fig9-5 of ISBN:0471888893 calls this the profundus placode; XAO says 'profundal and the trigeminal ganglia are separate distally but fused at their proximal end...'"
Synonyms:exact_synonym: trigeminal V placode;   trigeminal placode
 related_synonym: profundus V placode;   profundus placode;   trigeminal placodes
 xref: EFO:0003433;   EHDAA2:0004209;   TAO:0000162;   VHOG:0000109;   XAO:0000225;   ZFA:0000162


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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
          ectoderm-derived structure 0
            non-neural ectoderm 0
              preplacodal ectoderm 0
                neurogenic placode 0
                  dorsolateral placode 0
                    trigeminal placode complex 0
                      future trigeminal ganglion + 0
                      maxillomandibular placode + 0
                      profundal placode + 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
                            non-neural ectoderm 0
                              preplacodal ectoderm 0
                                neurogenic placode 0
                                  dorsolateral placode 0
                                    trigeminal placode complex 0
                                      future trigeminal ganglion + 0
                                      maxillomandibular placode + 0
                                      profundal placode + 0
paths to the root