Gynaecology & Obstetrics Serum inhibin B is secreted by ovarian granulosa cells staing at:- A Primordial follicle stage B Preantral follicle stage C Early antral stage D Pre ovulatory stage 💡 Explanation Serum inhibin B is secreted by ovarian granulosa cells staing at:- ✓ Correct Answer: B. Preantral follicle stage