Fill in the blank: The structure which provides vascular connection between foetus and uterus is called __________
The placenta is defined as temporary intimate mechanical and the physiological connection between foetus and maternal tissue for the nutrition, respiration and excretion of the foetus.
Human placenta consists of chorion only. The placenta is fully formed by the end of the third month and maintains pregnancy. In the placenta, the foetal blood comes very close to the maternal blood and this permits the exchange of material between the two. Food, water, mineral salt, vitamin, hormone antibodies and oxygen pass from the maternal blood into the fetal blood, and fetal metabolic waste, such as carbon dioxide, and urea also water and hormones, pass into the maternal blood.