Which structure carries sperm from the testes to the urethra?

The vas deferens is the structure responsible for transporting sperm from the testes to the urethra. It is a muscular tube that connects each testis to the ejaculatory duct, facilitating the movement of sperm during ejaculation. This process is essential for reproduction, as it allows sperm to travel from their site of production in the testes through the male reproductive tract.

The scrotum, while important for housing and regulating the temperature of the testes, does not play a direct role in the transportation of sperm. The epididymis serves as a maturation site for sperm, where they gain motility and the ability to fertilize an egg, but it does not convey sperm directly to the urethra. The penis is involved in the excretion of urine and the delivery of sperm during sexual intercourse but does not itself transport sperm from the testes.

Understanding the role of the vas deferens is crucial in appreciating how the male reproductive system functions, particularly its role in ensuring sperm is delivered effectively for potential fertilization.