Accessory Reproductive Ducts in Males
The male reproductive system comprises several ducts, each playing a critical role in the transportation and maturation of sperm. Among these, the connection between the seminal vesicles and the vas deferens is particularly significant.

Function of the Seminal Vesicles
- The seminal vesicles are glands that produce a viscous fluid that constitutes a major portion of seminal fluid.
- This fluid contains fructose, which provides energy for sperm, and various proteins and enzymes that aid in sperm motility and viability.

The Role of the Vas Deferens
- The vas deferens, also known as the ductus deferens, is a muscular tube that transports sperm from the epididymis to the ejaculatory duct.
- It is approximately 30-35 cm long and is responsible for moving sperm during ejaculation.

Connection Between Seminal Vesicles and Vas Deferens
- The seminal vesicles connect to the vas deferens at the ampullary region, where the duct of the seminal vesicle merges with the vas deferens.
- This junction is crucial as it allows the seminal fluid to mix with sperm before ejaculation.

Why Option B is Correct
- Option B, the vas deferens, is the correct answer because it is the duct that receives secretions from the seminal vesicles.
- The other options do not play a role in this specific connection:
- Rete testis: A network of tubules that collects sperm from the seminiferous tubules.
- Epididymis: A coiled structure where sperm mature but does not receive seminal fluid.
- Urethra: The final duct for urine and semen but does not specifically connect to the seminal vesicles.
In conclusion, the vas deferens is integral to the male reproductive system, serving as the conduit for sperm and seminal fluid, making option B the correct answer.

The vas deferens is the duct that receives a duct from the seminal vesicle. The vas deferens joins with the duct from the seminal vesicle to form the ejaculatory duct, which then leads to the urethra. This process is essential for the transport of sperm and seminal fluid during ejaculation.