"Blastocyst" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
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.
- Embryo, Preimplantation
- Embryos, Preimplantation
- Preimplantation Embryo
- Preimplantation Embryos
Below are MeSH descriptors whose meaning is more general than "Blastocyst".
Below are MeSH descriptors whose meaning is more specific than "Blastocyst".
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