| 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: | tight junction |
|---|---|
| Synonyms: | occluding cell junction, occluding junction |
| Definition: | A cell-cell junction that seals cells together in an epithelium in a way that prevents even small molecules from leaking from one side of the sheet to the other. |
| Ontology: | GO: Cellular Component [GO:0070160] QuickGO AmiGO |