Final answer:
Efferent ducts transport immature sperm from the seminiferous tubules to the epididymis, where they mature. Subsequently, the vas deferens carries the mature sperm from the epididymis to the ejaculatory ducts during ejaculation.
Step-by-step explanation:
The tubes that carry sperm directly to the epididymis are known as efferent ducts. These ducts are responsible for transporting immature sperm from the seminiferous tubules within the testes to the epididymis. The epididymis, a long coiled tube, facilitates the maturation of sperm over a period of approximately 12 days. The maturation process is vital for the spermatozoa to gain the capability to move independently, which is essential for successful fertilization of the female ovum. Once the sperm mature, they are stored in the tail of the epididymis until ejaculation. At this point, the sperm are transported by the vas deferens from the epididymis to the ejaculatory ducts during the process of ejaculation. The vas deferens, also known as the sperm duct, is a muscular tube lined with smooth muscle and ciliated epithelium, playing a crucial role in the male reproductive system by facilitating the movement of mature sperm.
The efferent ducts carry sperm from the seminiferous tubules to the epididymis, where they mature before being transported through the vas deferens during ejaculation. The vas deferens (sperm duct) are vital in moving mature sperm from the epididymis to the ejaculatory ducts.