The barrier between maternal and foetal blood is the
Answer Details
The barrier between maternal and foetal blood is the placenta. The placenta is a temporary organ that develops during pregnancy and connects the developing fetus to the uterine wall of the mother. It allows for the exchange of nutrients, oxygen, and waste products between the mother and the developing fetus, while preventing the mixing of their bloodstreams. The placenta acts as a filter and a barrier, preventing harmful substances such as bacteria and large molecules from passing from the mother's bloodstream to the fetus, thus protecting the developing fetus from infection and other harm.