| Name: | shield |
|---|---|
| Synonyms: | dorsal organizer, organizer, Spemann Mangold organizer, Spemann's organizer |
| Definition: | Embryonic structure that is a local accumulation of cells along the germ ring. The shield marks the dorsal side of the embryo. |
| Ontology: | Anatomy Ontology [ZFA:0000071] |
| Name: | blastomere |
|---|---|
| Synonyms: | blastomeres |
| Definition: | Cell that arises during cleavage and is partially cleaved, and located at the blastodisc margin prior to collectively forming the yolk syncytial layer (YSL) in the midblastula. |
| Ontology: | Anatomy Ontology [ZFA:0000093] |