The inner most foetal membrane around the embryo

Options

A. Amnion
B. Allontois
C. Chorion
D. Yolksac

Answer

**Step-by-Step Solution:**

1. **Identify the Fetal Membranes**: The embryo is surrounded by several membranes, each with specific functions. The main membranes to consider are the chorion, allantois, amnion, and yolk sac.

2. **Determine the Outermost Membrane**: The chorion is the outermost membrane surrounding the embryo. Its primary function is to provide protection.

3. **Identify the Next Layer**: The allantois is the membrane that lies between the chorion and the amnion. It is involved in the exchange of gases and waste products.

4. **Identify the Innermost Membrane**: The amnion is the innermost membrane surrounding the embryo. Its main function is to protect the growing embryo.

5. **Consider the Yolk Sac**: The yolk sac is present in humans but is not considered a fetal membrane in the same context as the others. Its functions include the absorption of nutrients and the formation of blood cells.

6. **Conclusion**: Based on the identification of the membranes, the innermost fetal membrane around the embryo is the amnion.

**Final Answer**: The innermost fetal membrane around the embryo is the **amnion**.

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