MEDICAL

FETOPLACENTAL CIRCULATION IS ESTABLISHED AT OR DURING THE

  • A. Tenth week of gestation
  • B. Fifth week of gestation ✓
  • C. Third week of gestation
  • D. Third month of gestation
  • E. Fourth month of gestation

 

Fetoplacental circulation is a crucial process in pregnancy where the circulatory system of the fetus becomes connected to the placenta, allowing for the exchange of nutrients, oxygen, and waste products between the mother and the developing baby. The establishment of fetoplacental circulation is a key milestone in prenatal development.

Timing of Fetoplacental Circulation Establishment

The correct timing when fetoplacental circulation is established is essential for ensuring proper fetal development and growth. In this case, the establishment of fetoplacental circulation occurs during the Fifth week of gestation (B).

During the fifth week of gestation, major developments occur in the embryo that lead to the formation of blood vessels connecting the fetus to the placenta. This process allows for the exchange of gases and nutrients necessary for fetal growth and development.

In other words, Fetoplacental circulation is established during the Fifth week of gestation. This is when the fetal heart begins to beat and the placenta starts to form, allowing for the exchange of nutrients and waste products between the mother and the developing fetus.

During the fifth week of gestation, the chorionic villi begin to invade the maternal endometrium, forming the placenta. The umbilical cord also starts to develop, connecting the fetus to the placenta. By this stage, blood vessels from both the mother and the fetus come into close proximity within the placenta, allowing for the exchange of oxygen, nutrients, and waste products.

The establishment of fetoplacental circulation is a crucial step in ensuring proper fetal development and growth throughout pregnancy. It allows for the transfer of essential substances between the maternal and fetal circulations, supporting the metabolic needs of the developing fetus.

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