In the placenta, maternal blood comes in direct contact with:
Correct Answer: The syncytiotrophoblast
Description: The syncytiotrophoblast forms the surface layer of the chorionic villi and is bathed by maternal blood flowing through the intervillous space. The syncytiotrophoblast is a product of division infusion of cells in the underlying cytotrophoblast. Fetal capillaries course through the fetal connective tissue that forms the core of all orders of villi, and thus have no contact with maternal blood when placental structure is intact. As the syncytiotrophoblast is a derivative of the embryonic trophoblast layer, it is incorrect to state that maternal blood has no contact with fetally derived cells. Ref: Cunningham F.G., Leveno K.J., Bloom S.L., Hauth J.C., Rouse D.J., Spong C.Y. (2010). Chapter 3. Implantation, Embryogenesis, and Placental Development. In F.G. Cunningham, K.J. Leveno, S.L. Bloom, J.C. Hauth, D.J. Rouse, C.Y. Spong (Eds), Williams Obstetrics, 23e.
Category:
Gynaecology & Obstetrics
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now