Send us a Message



Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   

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:allantois
go back to main search page
Accession:UBERON:0004340 term browser browse the term
Definition:A membranous sac that develops from the posterior part of the alimentary canal in the embryos of mammals, birds, and reptiles, and it is important in the formation of the umbilical cord and placenta in mammals[VHOG].
Comment:[development-note] "a diverticulum of the hindgut endoderm [ISBN:0073040584 (Vertebrates, Kardong)]"; [homology-note] "Structures homologous to the four extraembryonic membranes of reptiles and birds appear in mammals: amnion, chorion, yolk sac, and allantois.[well established][VHOG]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000738", ontology="VHOG", source="ISBN:978-0072528305 Kardong KV, Vertebrates: Comparative Anatomy, Function, Evolution (2006) p.187", source="http://bgee.unil.ch/"}
Synonyms:related_synonym: allantoic bud
 xref: BTO:0000474;   EHDAA2:0001504;   EMAPA:16107;   EMAPA_RETIRED:16084;   MESH:D000482;   NCI:C34101;   RETIRED_EHDAA2:0000114;   SCTID:308825007;   UMLS:C0002084;   VHOG:0000738;   Wikipedia:Allantois
 relational_adjective: allantoic



show annotations for term's descendants           Sort by:

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
          anatomical system 0
            genitourinary system 0
              cloaca 0
                allantois 0
                  allantois of embryonic urinary system 0
                  chorioallantoic membrane 0
                  placenta + 0
                  urachus + 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
              anatomical system 0
                organ 0
                  organ part 0
                    anatomical wall 0
                      organ component layer 0
                        membranous layer 0
                          extraembryonic membrane 0
                            allantois 0
                              allantois of embryonic urinary system 0
                              chorioallantoic membrane 0
                              placenta + 0
                              urachus + 0
paths to the root