The seminal duct, also known as the vas deferens, is a long, muscular tube that transports sperm from the epididymis, where sperm mature, to the ejaculatory duct in the male reproductive system. It plays a crucial role in the process of ejaculation, allowing sperm to be propelled from the testes towards the urethra. The seminal duct is responsible for carrying sperm along with secretions from the seminal vesicles to form seminal fluid, which is then released during sexual intercourse. Understanding the function and anatomy of the seminal duct is essential for comprehending male fertility and reproductive health.

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