In Periplaneta, which one helps in nourishing the sperms

Options

A. Ejaculatory duct
B. Vas deferens
C. Utriculi majores
D. Utriculi brevores

Answer

To answer the question regarding which structure in Periplaneta (the cockroach) helps in nourishing the sperms, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structures Involved**: We need to look at the reproductive system of the cockroach, specifically the glands associated with sperm production and nourishment.

2. **Understand the Role of Accessory Glands**: In the cockroach, there are accessory glands that play a crucial role in the reproductive process. These include the utriculi majoris and utriculi brevoris.

3. **Differentiate Between Utriculi Majoris and Utriculi Brevoris**:
- **Utriculi Majoris**: These are long cylindrical tubes that secrete substances forming the inner layer of the spermatophore, which is a packet that contains the sperms.
- **Utriculi Brevoris**: These are shorter tubules that specifically secrete substances that nourish the sperms.

4. **Determine the Correct Answer**: Since the question asks for the structure that helps in nourishing the sperms, the correct answer is **Utriculary Brevoris**. Their secretions are responsible for providing nourishment to the sperms.

5. **Conclusion**: Therefore, the structure in Periplaneta that helps in nourishing the sperms is the **Utriculary Brevoris**.

### Final Answer:
The structure that helps in nourishing the sperms in Periplaneta is **Utriculary Brevoris**.

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