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Descriptor English: Blastodisc
Descriptor Spanish: Blastodisco
Descriptor blastodisco
Scope note: Pequeña área blanquecina en la superficie de la YEMA DEL HUEVO donde comienza la segmentación. Tras la fecundación, el citoplasma se desplaza desde el polo vegetal alejado en el vitelo al polo animal donde tendrá lugar la segmentación. Finalmente, el área germinal se aplana formando una capa de células (BLASTODERMO) que recubre totalmente la yema.
Descriptor Portuguese: Blastodisco
Descriptor French: Blastodisque
Entry term(s): Area, Germinal
Areas, Germinal
Blastodiscs
Disc, Germinal
Discs, Germinal
Germinal Area
Germinal Areas
Germinal Disc
Germinal Discs
Tree number(s): A16.331.042
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D054239
Scope note: A small whitish spot on the surface of the EGG YOLK where cleavage begins. Upon fertilization the cytoplasm streams from the vegetal pole away from the yolk to the animal pole where cleavage will occur. This germinal area eventually flattens into a layer of cells (BLASTODERM) that covers the yolk completely.
Allowable Qualifiers: AB abnormalities
AH anatomy & histology
BS blood supply
CH chemistry
CY cytology
DE drug effects
DG diagnostic imaging
EM embryology
EN enzymology
IM immunology
IN injuries
IR innervation
ME metabolism
MI microbiology
PA pathology
PH physiology
PP physiopathology
PS parasitology
RE radiation effects
SU surgery
TR transplantation
UL ultrastructure
VI virology
Previous Indexing: Chick Embryo (1964-2007)
Public MeSH Note: 2008
History Note: 2008
DeCS ID: 52543
Unique ID: D054239
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 2008/01/01
Date of Entry: 2007/07/09
Blastodisc - Preferred
Concept UI M0503154
Scope note A small whitish spot on the surface of the EGG YOLK where cleavage begins. Upon fertilization the cytoplasm streams from the vegetal pole away from the yolk to the animal pole where cleavage will occur. This germinal area eventually flattens into a layer of cells (BLASTODERM) that covers the yolk completely.
Preferred term Blastodisc
Entry term(s) Area, Germinal
Areas, Germinal
Blastodiscs
Disc, Germinal
Discs, Germinal
Germinal Area
Germinal Areas
Germinal Disc
Germinal Discs



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