The shared terminal duct of the urinary system and the male reproductive system in human beings is

Options

A. Ductus deferens
B. Ejaculatory duct
C. Urethra
D. Epididymis

Answer

To solve the question regarding the shared terminal duct of the urinary system and the male reproductive system in human beings, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Systems**:
- The urinary system is responsible for the excretion of urine.
- The male reproductive system is responsible for the production and passage of sperm.

2. **Identifying the Ducts**:
- We need to identify the ducts involved in both systems. The key ducts in the male reproductive system include:
- Ductus deferens (vas deferens)
- Ejaculatory duct
- Epididymis
- The urinary system primarily involves the urethra.

3. **Analyzing the Options**:
- **Ductus deferens**: This is the duct that carries sperm from the epididymis to the ejaculatory duct, but it is not part of the urinary system.
- **Ejaculatory duct**: This duct carries sperm from the ductus deferens to the urethra, but it does not serve the urinary system directly.
- **Urethra**: This is the duct that serves both systems, as it carries urine from the bladder and sperm from the reproductive system.
- **Epididymis**: This is where sperm matures and is stored, but it does not connect to the urinary system.

4. **Conclusion**:
- The urethra is the only duct that serves as a common terminal duct for both the urinary system and the male reproductive system.

5. **Final Answer**:
- Therefore, the shared terminal duct of the urinary system and the male reproductive system in human beings is **the urethra**.