| Name: | yolk |
|---|---|
| Synonyms: | yolk cell |
| Definition: | Giant syncytial uncleaved cell containing nutrient store for embryonic development in the form of semicrystalline phospholipoprotein and contained within yolk granules. |
| Ontology: | Anatomy Ontology [ZFA:0000084] |
| Name: | animal-vegetal axis |
|---|---|
| Synonyms: | A-V axis, animal/vegetal axis, AV axis |
| Definition: | An axis that extends from the animal end of an egg or early embryo to the opposite, vegetal end. In animals with yolk-bearing eggs, the vegetal end is the yolk bearing pole. (pertains to animals only - both vertebrate and invertebrate embryos). |
| Ontology: | Spatial Ontology [BSPO:0000199] |