Terminology Service for NFDI4Health
amnion
Go to external page
http://purl.obolibrary.org/obo/UBERON_0000305
the thin innermost layer of the extraembryonic membranes that contains the amniotic fluid; the membrane forms a closed sac in which the embryo and later, the fetus, is suspended and protected [ http://www.informatics.jax.org/accession/csmith ]
Term info
Label
amnion
Synonyms
- amnios
Subsets
pheno_slim
depicted by
http://upload.wikimedia.org/wikipedia/commons/e/e7/Gray14.png
external definition
A thin but tough extraembryonic membrane of reptiles, birds and mammals that lines the chorion and contains the fEtus and the amniotic fluid around it. [Biology_Online][VHOG]
has obo namespace
uberon
has relational adjective
amniotic
homology notes
Structures homologous to the four extraembryonic membranes of reptiles and birds appear in mammals: amnion, chorion, yolk sac, and allantois.[well established][VHOG]
id
UBERON:0000305
Term relations
Subclass of:
- extraembryonic membrane
- mesoderm-derived structure
- has part some amniotic mesoderm
- has part some amniotic ectoderm
- has developmental contribution from some somatic layer of lateral plate mesoderm
- develops_from some amniotic fold
- surrounds some embryo
- has developmental contribution from some ectoderm