| Name: | ball |
|---|---|
| Synonyms: | yolk ball |
| Definition: | The anterior round region of the yolk cell present after the yolk extension forms during the segmentation period. |
| Ontology: | Anatomy Ontology [ZFA:0000006] |
| Name: | epidermis |
|---|---|
| Synonyms: | |
| Definition: | A cellular, multilayered epithelium derived from the ectoderm. Zebrafish epidermis consists only of living cells unlike terrestrial vertebrates in which dead, keratinized cells are present. |
| Ontology: | Anatomy Ontology [ZFA:0000105] |