| dbo:abstract |
الكيسة ثنائية الصفائح أو القرص الثنائي الطبقات يشير إلى الأديم الخارجي والأريمة التحتانية، التي تطورت من كتلة الخلايا الداخلية. وهاتان الطبقتان تنحشر بين اثنين من البالونات: الكيس المحي البدائي والتجويف الذي يحيط بالجنين. (ar) The bilaminar embryonic disc, bilaminar blastoderm or embryonic disc is the two-layered structure of epiblast and hypoblast, differentiated from the inner cell mass also known as the embryoblast. These two layers of cells lie between two cavities: the primitive yolk sac and the amniotic cavity. The inner cell mass, begins to transform into two distinct epithelial layers just before implantation is completed. The epiblast, also known as the primitive ectoderm, is the outer layer that consists of columnar cells. The inner layer is called the hypoblast, also known as the primitive endoderm, which is composed of cuboidal cells. As the two layers become evident, a basement membrane presents itself between the layers. The final two layers of the embryoblast are known collectively as the bilaminar embryonic disc. This bilaminar disc also defines the primitive dorsal ventral axis. Blastocyst implantation will occur during the second week of embryonic development in the endometrium of the uterus; the epiblast is dorsal and the hypoblast is ventral. (en) |
| dbo:precursor |
dbr:Inner_cell_mass |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Gray21.png?width=300 |
| dbo:wikiPageExternalLink |
http://personalpages.manchester.ac.uk/staff/j.gough/lectures/the_cell/diffdev1/page11.html |
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| dbo:wikiPageWikiLink |
dbr:Amnion dbr:Endoderm dbr:Endometrium dbr:Epiblast dbr:Extraembryonic_coelom dbr:Morula dbr:Primitive_streak dbr:Uterus dbr:Ingression_(biology) dbr:Inner_cell_mass dbr:Intermediate_mesoderm dbr:Meckel's_diverticulum dbr:Gastrulation dbr:Embryonic_development dbr:Connecting_stalk dbr:Chorion dbr:Cleavage_(embryo) dbc:Embryology dbr:Lateral_plate_mesoderm dbr:Cellular_differentiation dbr:Fallopian_tube dbr:Germ_cell dbr:Extra-embryonic_coelom dbr:Hypoblast dbr:Fetal_membrane dbr:Blastocoel dbr:Blastocyst dbr:Ectoderm dbr:Heuser's_membrane dbr:Fetal_membranes dbr:Implantation_(embryology) dbr:Implantation_(human_embryo) dbr:Yolk_sac dbr:Zygote dbr:Neural_plate dbr:Surface_ectoderm dbr:Trophoblast dbr:Paraxial_mesoderm dbr:Amniotic_cavity dbr:Hematopoiesis dbr:File:2907_Embroyonic_Disc,_Amniotic_Cavity,_Yolk_Sac-02.jpg |
| dbp:caption |
Section through the embryo. (en) Embryonic disc at implantation site with epiblast expanded to form the amniotic cavity (en) |
| dbp:days |
13 (xsd:integer) |
| dbp:image |
Bilaminar-embryonic-disc-at-14-days-in-the-implantation-site-in-endometrium.png (en) |
| dbp:name |
Bilaminar embryonic disc (en) |
| dbp:precursor |
dbr:Inner_cell_mass |
| dbp:wikiPageUsesTemplate |
dbt:Authority_control dbt:Reflist dbt:Embryology dbt:Infobox_embryology |
| dct:subject |
dbc:Embryology |
| rdf:type |
owl:Thing wikidata:Q4936952 dbo:AnatomicalStructure dbo:Embryology |
| rdfs:comment |
الكيسة ثنائية الصفائح أو القرص الثنائي الطبقات يشير إلى الأديم الخارجي والأريمة التحتانية، التي تطورت من كتلة الخلايا الداخلية. وهاتان الطبقتان تنحشر بين اثنين من البالونات: الكيس المحي البدائي والتجويف الذي يحيط بالجنين. (ar) The bilaminar embryonic disc, bilaminar blastoderm or embryonic disc is the two-layered structure of epiblast and hypoblast, differentiated from the inner cell mass also known as the embryoblast. These two layers of cells lie between two cavities: the primitive yolk sac and the amniotic cavity. (en) |
| rdfs:label |
Bilaminar embryonic disc (en) كيسة أريمية ثنائية الطبقات (ar) |
| owl:sameAs |
wikidata:Bilaminar embryonic disc dbpedia-ar:Bilaminar embryonic disc https://global.dbpedia.org/id/4Yv1A |
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wikipedia-en:Bilaminar_embryonic_disc?oldid=1120375966&ns=0 |
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wiki-commons:Special:FilePath/Bilaminar-embryonic-d...-implantation-site-in-endometrium.png wiki-commons:Special:FilePath/Gray21.png wiki-commons:Special:FilePath/2907_Embroyonic_Disc,_Amniotic_Cavity,_Yolk_Sac-02.jpg |
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wikipedia-en:Bilaminar_embryonic_disc |
| foaf:name |
Bilaminar embryonic disc (en) |
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dbr:Bilaminar_blastocyst dbr:Embryonic_disc dbr:Bilaminar_disc dbr:Bilaminar_disk dbr:Embryonic_disk |
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wikipedia-en:Bilaminar_embryonic_disc |
