11. Outside the basal lamina, the layers theca interna and theca externa are found. 12. Outside the basal lamina, the layers theca interna and theca externa are found. 13. The bottom surface of the theca is unplated. 14. It is an armoured species with a distinct body covering called theca or test. 15. In females, ? 4-dione is released into the blood by theca cells. 16. The body ( theca ) was covered with calcite plates with a number of openings. 17. In days, the theca cells enveloped the granulosa and eggs, mimicking a real ovary. 18. Hence, both granulosa and theca cells are essential for the production of estrogen in the ovaries. 19. Rarely, when the theca -lutein cysts are stimulated by gonadotropins, massive ascites can result. 20. A secondary follicle is formed with a few granulosa cell layers, as well as a theca layer.
