The type placenta with a unilocular ovary and a single ovule

Options

A. Marginal
B. Basal
C. Free central
D. Axile

Answer

To solve the question regarding the type of placenta associated with a unilocular ovary and a single ovule, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Placenta and Placentation**:
- Placentation refers to the arrangement of ovules within the ovary. The type of placentation depends on how and where the ovules are attached to the placenta.

2. **Identifying the Key Terms**:
- The question specifies a "unilocular ovary" and a "single ovule." A unilocular ovary means there is only one chamber (locule) in the ovary.

3. **Analyzing the Options**:
- **Marginal Placenta**: In marginal placentation, the ovules are attached along the margin of the ovary. This type typically occurs in multilocular ovaries, making it incorrect for our case.
- **Basal Placenta**: In basal placentation, the ovules are attached at the base of the ovary. This type can occur in a unilocular ovary with a single ovule, making this option a potential correct answer.
- **Precentral Placenta**: This type involves the placenta being located at the central axis of the ovary. It does not specifically relate to unilocular ovaries and is generally more complex, so it is not applicable here.
- **Axile Placenta**: Axile placentation occurs in multilocular ovaries where the placenta is located at the center, with ovules attached around it. This is not suitable for a unilocular ovary.

4. **Conclusion**:
- After analyzing all the options, the only type of placentation that fits the description of having a unilocular ovary and a single ovule is **Basal Placenta**.

### Final Answer:
The type of placenta with a unilocular ovary and a single ovule is **Basal Placenta**.

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