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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:archenteron
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Accession:UBERON:0004735 term browser browse the term
Definition:The cavity of a gastrula forming a primitive gut.
Comment:[development-note] "The primitive gut that forms during gastrulation in the developing blastula. It develops into the digestive tract of an animal. As primary mesenchyme cells detach from the vegetal pole in the blastula and enter the fluid filled cavity in the center (the blastocoel), the remaining cells at the vegetal pole flatten to form a vegetal plate. This buckles inwards towards the blastocoel in a process called invagination. The cells continue to be rearranged until the shallow dip formed by invagination transforms into a deeper, narrower pouch formed by the gastrula's endoderm. This narrowing and lengthening of the archenteron is driven by convergent extension. The open end of the archenteron is called the blastopore. The filopodia--thin fibers formed by the mesenchyme cells--found in a late gastrula contract to drag the tip of the archenteron across the blastocoel. The endoderm of the archenteron will fuse with the ectoderm of the blastocoel wall. At this point gastrulation is complete, and the gastrula has a functional digestive tube. The indentation that is actually formed is called the lip of the blastopore in amphibians and fish, and the primitive streak in birds and mammals. Each is controlled by the dorsal blastopore, and primitive node (also known as Hensen's node), respectively" xsd:string {source="WP"}
Synonyms:related_synonym: gastrocoel;   mesenteron;   primitive endodermal cavity
 xref: AAO:0010430;   BTO:0001696;   Wikipedia:Archenteron;   XAO:0000092
 external_ontology: dubious_for_taxon NCBITaxon:7955


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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
        developing anatomical structure 0
          embryonic structure 0
            archenteron 0
              archenteron floor 0
              archenteron roof 0
              blastopore + 0
              post-anal gut 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
                cleaving embryo 0
                  blastula 0
                    gastrula 0
                      archenteron 0
                        archenteron floor 0
                        archenteron roof 0
                        blastopore + 0
                        post-anal gut 0
paths to the root