| Name: | Kupffer's vesicle |
|---|---|
| Synonyms: | ciliated organ of asymmetry |
| Definition: | Small but distinctive epithelial sac containing fluid, located midventrally posterior to the yolk cell or its extension, and transiently present during most of the segmentation period. Kupffer's vesicle has been compared to the mouse embryonic node. |
| Ontology: | Anatomy Ontology [ZFA:0000001] |
| Name: | portion of organism substance |
|---|---|
| Synonyms: | |
| Definition: | Material anatomical entity in a gaseous, liquid, semisolid or solid state; produced by anatomical structures or derived from inhaled and ingested substances that have been modified by anatomical structures as they pass through the body. |
| Ontology: | Anatomy Ontology [ZFA:0001487] |
| Name: | circling direction |
|---|---|
| Synonyms: | |
| Definition: | A directional quality inhering in a bearer by virtue of the bearer's direction approximating the shape of a circle. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001904] |