Reproductive organs, copulatory appendages and anal cerci receive nerves from 

Options

A. `6^(th)` abdominal ganglion in `7^(th)` segment
B. `7^(th)` abdominal ganglion in `8^(th)` segment
C. `6^(th)` abdominal ganglion in `6^(th)` segment
D. `5^(th)` abdominal ganglion in `6^(th)` segment

Answer

To solve the question regarding the nerves that supply the reproductive organs, copulatory appendages, and anal cerci, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structures**:
- The question mentions reproductive organs (ovaries and testes), copulatory appendages (pseudo penis in males), and anal cerci (sensory organs).

2. **Understand the Nervous System of Cockroaches**:
- Cockroaches have a segmented nervous system with ganglia. Each segment has a pair of ganglia that control the functions of that segment.

3. **Locate the Relevant Ganglia**:
- The reproductive organs and associated structures receive their nerve supply from specific abdominal ganglia.
- The sixth abdominal ganglion is particularly important for the innervation of these structures.

4. **Determine the Segment**:
- The reproductive organs and copulatory appendages are located in the seventh segment of the cockroach.

5. **Match the Ganglion with the Segment**:
- Based on the information, the reproductive organs, copulatory appendages, and anal cerci receive nerves from the sixth abdominal ganglion located in the seventh segment.

6. **Select the Correct Option**:
- The correct answer is: **Sixth abdominal ganglion in the seventh segment**.

### Final Answer:
The reproductive organs, copulatory appendages, and anal cerci receive nerves from the **sixth abdominal ganglion in the seventh segment**.

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