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In a unilocular ovary the ovules develop...

In a unilocular ovary the ovules develop from all over the wall. The placentation is

A

Superficial

B

Marginal

C

Free central

D

Parietal

Text Solution

AI Generated Solution

The correct Answer is:
To determine the type of placentation in a unilocular ovary where the ovules develop from all over the wall, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Terms**: - A unilocular ovary has only one locule (chamber) and can contain multiple ovules. - Placentation refers to the arrangement of ovules within the ovary. 2. **Identify the Options**: - The options given are: superficial, marginal, free central, central, and parietal. 3. **Analyze Superficial Placentation**: - In superficial placentation, ovules develop over the entire surface of the ovary wall. This matches the condition described in the question. 4. **Examine Other Types of Placentation**: - **Marginal Placentation**: Ovules develop along a ridge formed by the placenta on the ventral suture. This does not apply as the ovules are not restricted to a ridge. - **Free Central Placentation**: Ovules are attached to the central axis of the ovary. This is also not applicable since the ovules are not centralized. - **Central Placentation**: Similar to free central but typically involves a multi-locular ovary. This does not fit the description of a unilocular ovary. - **Parietal Placentation**: Ovules develop on two opposite lines of the ovary wall. This is not applicable as the ovules are developing all over the wall. 5. **Conclusion**: - Since the only type of placentation where ovules develop from all over the wall of a unilocular ovary is superficial placentation, the correct answer is superficial. ### Final Answer: The placentation in a unilocular ovary where the ovules develop from all over the wall is **superficial placentation**. ---
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