1. Thus, theca cells and granulosa cells work together to form estrogens. 2. Theca cells express receptors for luteinizing hormone ( LH ).3. Theca cells with granulosa cells help form the corpus luteum.4. Theca cells are only correlated with developing ovarian follicles.5. In females, ? 4-dione is released into the blood by theca cells . 6. In days, the theca cells enveloped the granulosa and eggs, mimicking a real ovary. 7. Hence, both granulosa and theca cells are essential for the production of estrogen in the ovaries. 8. It is speculated that insulin, at high enough concentration, stimulates the ovarian theca cells to produce androgens. 9. Together with human egg cells, donated granulosa cells were inserted into the honeycomb shape the theca cells formed. 10. FSH stimulates the growth of a tertiary follicle, and LH stimulates the production of estrogen by granulosa and theca cells .
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