Placenta is the region where

Options

A. Foetus is attached to mother by spermatic cord
B. Foetus is provided with mother's blood
C. Foetus receives nourishment from mother's blood
D. foetus is covered by membranes.

Answer

**Step-by-Step Solution:**

1. **Understanding the Placenta**: The placenta is a vital organ that forms during pregnancy. It acts as a connection between the mother and the developing fetus.

2. **Implantation Process**: After fertilization, the zygote undergoes several divisions and eventually implants itself into the endometrium (the inner lining of the uterus). This process is known as implantation.

3. **Formation of Chorionic Villi**: Once the zygote implants, the outer layer of the developing embryo, called the trophoblast, develops finger-like projections known as chorionic villi.

4. **Connection to Maternal Tissue**: These chorionic villi penetrate the uterine tissue, allowing for the formation of the placenta. The placenta is essentially a functional and structural unit formed from both maternal and fetal tissues.

5. **Functions of the Placenta**: The placenta serves several critical functions:
- It facilitates the exchange of oxygen and nutrients from the mother's blood to the fetus.
- It removes waste products from the fetus and transfers them to the mother's circulation for excretion.
- It also helps in the exchange of carbon dioxide produced by the fetus.

6. **Nourishment of the Fetus**: The primary role of the placenta is to nourish the growing fetus by providing it with essential nutrients and oxygen from the mother's blood.

7. **Umbilical Cord Connection**: The placenta is connected to the fetus through the umbilical cord, which transports nutrients and oxygen to the fetus and carries waste products away.

**Final Answer**: The placenta is the region where the fetus receives nourishment from the mother's blood.

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