Terminology Service for NFDI4Health
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trophectoderm

Go to external page http://purl.obolibrary.org/obo/UBERON_0004345

outermost layer of cells in the blastodermic vesicle, which will develop into the trophoblast layer and then contact the endometrium and take part in establishing the embryo's means of nutrition [ ]

Term info

Label

trophectoderm

database cross reference
Subsets

pheno_slim, early_development

editor note

distinction between trophectoderm and trophoblast unclear/inconsistent in many sources

external definition

The outer cellular layer of the mammalian blastocyst. [Evolution, Fourth_Edition_(2006)_McGraw-Hill, Function, Vertebrates:_Comparative_Anatomy, p.750, see_Kardong_KV][VHOG]

external ontology notes

BTO has this has part of the trophoblast

has relational adjective

trophectodermal

homology notes

(...) the trophoblast develops rapidly so that contact may be made with the maternal uterine tissues when conditions are appropriate. We have here an excellent example of an embryonic adaptation, the development of a structure never present in either adult or embryo of 'lower' vertebrates.[well established][VHOG]

id

UBERON:0004345