Final answer:
The vas deferens, or ductus deferens, is a tube in the male reproductive system that carries sperm from the epididymis to the ejaculatory ducts, facilitating sperm transport during ejaculation.
Step-by-step explanation:
The vas deferens, also known as the ductus deferens, is a crucial component of the male reproductive system. This tube, extending approximately 30 cm in length, is responsible for transporting sperm from the epididymis to the ejaculatory ducts. The vas deferens is lined with ciliated epithelium and is surrounded by smooth muscle that aids in the propulsion of sperm during ejaculation.
Each vas deferens travels from the scrotum, entering the abdominal cavity via the inguinal canal, and continues to the pelvic cavity, where it ends at the ampulla. Surgical sterilization, such as a vasectomy, can be performed by cutting and sealing a section of the vas deferens for birth control purposes.