Gynaecology & Obstetrics In hibin are secreted by: (PGI May 2011) A Granulosa cells of the ovary B Endometrial stromal tumor C Endodermal sinus tumor D Endometrial adeno carcinoma 💡 Explanation In hibin are secreted by: (PGI May 2011) ✓ Correct Answer: A. Granulosa cells of the ovary