Gynaecology & Obstetrics Normal placenta contains fetal and maternal pa. Which is the MOST inner pa of placenta? A Decidua basalis B Nitabuch layer C Cytotrophoblast D Syncytiotrophoblast 💡 Explanation Normal placenta contains fetal and maternal pa. Which is the MOST inner pa of placenta? ✓ Correct Answer: D. Syncytiotrophoblast