Gynaecology & Obstetrics All are true about uteroplacental circulation except A Blood in the intervillous space is completely replaced 3 - 4 times per minute B The villi depend on the maternal blood for their nutrition C A mature placenta has 150 ml of blood in the villi system and 350 ml of blood in the intervillous space D Intervillous blood flow at term is 500 - 600 ml per minute 💡 Explanation All are true about uteroplacental circulation except ✓ Correct Answer: C. A mature placenta has 150 ml of blood in the villi system and 350 ml of blood in the intervillous space