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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:endostyle
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Accession:UBERON:0006870 term browser browse the term
Definition:An endostyle is a longitudinal ciliated groove on the ventral wall of the pharynx which produces mucus to gather food particles. It is found in urochordates and cephalochordates, and in the larvae of lampreys. It aids in transporting food to the esophagus. It is also called the hypopharyngeal groove. The endostyle in larval lampreys (ammocetes) metamorphoses into the thyroid gland in adults, and is regarded as being homologous to the thyroid gland in vertebrates. However, Dumont, et al. question whether the endostyle in ammocetes is homologous with that of the urochordates and cephalochordates. Since the endostyle is found in the three branches of chordates, it is presumed to have arisen in the common ancestor of these taxa, along with a shift to internal feeding for extracting suspended food from the water.
Comment:Dumont, et al. question whether the endostyle in ammocetes is homologous with that of the urochordates and cephalochordates[WP].
Synonyms:related_synonym: hypopharyngeal groove
 xref: ANISEED:1235299;   BSA:0000064;   BTO:0003173;   Wikipedia:Endostyle
 external_ontology: n/a NCBITaxon:7712;   n/a NCBITaxon:7735;   n/a NCBITaxon:7745;   n/a NCBITaxon:7776


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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
          surface structure 0
            surface groove 0
              endostyle 0
                endostylar duct 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
                    presumptive gut 0
                      digestive tract 0
                        subdivision of digestive tract 0
                          pharynx 0
                            endostyle 0
                              endostylar duct 0
paths to the root