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Blastocyst MeSH Descriptor Data 2022


MeSH Heading
Blastocyst
Tree Number(s)
A16.254.500
Unique ID
D001755
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D001755
Annotation
Mammalian only; non-mammalian, use BLASTULA; /‌transpl: coordinate BLASTOCYST (NIM with no qualifiers) + EMBRYO TRANSFER (IM); do not confuse with BLASTOCYTES see BLASTOMERES
Scope Note
A post-MORULA preimplantation mammalian embryo that develops from a 32-cell stage into a fluid-filled hollow ball of over a hundred cells. A blastocyst has two distinctive tissues. The outer layer of trophoblasts gives rise to extra-embryonic tissues. The inner cell mass gives rise to the embryonic disc and eventual embryo proper.
Entry Term(s)
Embryo, Preimplantation
NLM Classification #
QS 645
Public MeSH Note
74
History Note
74
Entry Combination
transplantation:Embryo Transfer
Date Established
1974/01/01
Date of Entry
1999/01/01
Revision Date
2007/07/09
Blastocyst Preferred
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