| 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: | tube formation |
|---|---|
| Synonyms: | lumen formation in an anatomical structure, tube lumen formation |
| Definition: | Creation of the central hole of a tube in an anatomical structure through which gases and/or liquids flow. |
| Ontology: | GO: Biological Process [GO:0035148] QuickGO AmiGO |