This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Gynae), Subject name: Gynaecology & Obstetrics
[{'content': 'All are true about uteroplacental circulation except - \nSelect and explain. \nA. 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', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., A mature placenta has 150 ml of blood in the villi system and 350 ml of blood in the intervillous space Uteroplacental Circulationo A mature placenta has a volume of about 500 ml of blood; 350 ml being occupied in the villi system and 150 ml lying in the intervillous space.o Intervillous blood flow at term is around 500 - 600 ml per minuteo The blood in the intervilllous space is completely replaced about 3-4 times per minute.o The villi depend on maternal circulation for nutrition, thus it is possible for the chorionic villi to survive for a varying period even after the fetus is dead.", 'role': 'assistant'}]