Male sex accessory ducts include all of the following structures except

Options

A. Seminiferous tubule
B. Rete testis
C. Vasa efferentia
D. Vasa deferens

Answer

To solve the question regarding which structure is not included in the male sex accessory ducts, we will analyze the options provided and understand the components of the male reproductive system.

### Step-by-Step Solution:

1. **Understand Male Accessory Ducts**:
- Male accessory ducts are structures involved in the transport of sperm from the testes to the external environment. They include the rete testis, vasa efferentia, epididymis, and vas deferens.

2. **Identify the Structures**:
- **Rete Testis**: A network of tubules that collects sperm from the seminiferous tubules.
- **Vasa Efferentia**: Ducts that carry sperm from the rete testis to the epididymis.
- **Epididymis**: A coiled tube where sperm mature and are stored.
- **Vas Deferens**: The duct that transports sperm from the epididymis to the ejaculatory duct.

3. **Identify the Exception**:
- **Seminiferous Tubules**: These are the structures within the testes where sperm are produced, but they are not classified as accessory ducts. Instead, they are part of the testicular structure.

4. **Conclusion**:
- Since the question asks for the structure that is not included in the male sex accessory ducts, the correct answer is **Seminiferous Tubules**.

### Final Answer:
The male sex accessory ducts include all of the following structures except **Seminiferous Tubules**.

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