theca interna การใช้

• Outside the basal lamina, the layers theca interna and theca externa are found.
• FSH induces the granulosa cells to make aromatase that converts the androgens made by the theca interna into estradiol.
• In females, synthesis of estrogens starts in theca interna cells in the ovary, by the synthesis of androstenedione from cholesterol.
• After rupture of the mature ovarian follicle, the theca interna cells differentiate into the theca lutein cells of the corpus luteum.
• The late-term secondary follicle is marked histologically and structurally by a fully grown oocyte surrounded by a zona pellucida, approximately nine layers of granulosa cells, a basal lamina, a theca interna, a capillary net, and a theca externa.