| Term: | ovarian follicle granulosa cell |
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
| Name: | ovarian follicle |
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| 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: | granulosa cell |
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| Synonyms: | granulosa cells |
| Definition: | A supporting cell for the developing female gamete in the ovary of mammals. They develop from the coelomic epithelial cells of the gonadal ridge. Granulosa cells form a single layer around the mammalian oocyte in the primordial ovarian follicle and advance to form a multilayered cumulus oophorus surrounding the ovum in the Graafian follicle. The major functions of granulosa cells include the production of steroids and LH receptors. |
| Ontology: | Anatomy Ontology [ZFA:0009227] |