Name: | Kupffer's vesicle |
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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: | centrosome |
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Synonyms: | |
Definition: | A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle. |
Ontology: | GO: Cellular Component [GO:0005813] QuickGO AmiGO |