| Name: | ovarian follicle |
|---|---|
| Synonyms: | egg follicle |
| Definition: | Oocyte development of zebrafish has been divided into five stages based on morphological criteria and on physiological and biochemical events. Stage I follicles (less than 140 microns) are primary growth stage, stage II follicles (140-340 microns) are cortical alveolus stage, stage III (340-690 microns) are vitellogenesis, stage IV (690-730 microns) are oocyte maturation, and stage V follicles are matured egg. |
| Ontology: | Anatomy Ontology [ZFA:0001110] |
| Name: | vitellogenesis |
|---|---|
| Synonyms: | yolk formation, yolk production |
| Definition: | The production of yolk. Yolk is a mixture of materials used for embryonic nutrition. |
| Ontology: | GO: Biological Process [GO:0007296] QuickGO AmiGO |